DE2452324A1 - DEVICE FOR THE SELECTIVE EXCHANGE OF INFORMATION - Google Patents

Description

COMPAGNIE HONEYWELL BUIL

94 Avenue Garabetta

PAR I S (20) / France

Our reference: H 1021

Facility for the selective exchange of information

The invention relates to a device for selective exchange of information between data sending devices and data receiving devices of a system of remote stations.

In the known data processing systems, it is common to have a or to use several data processing units that are interconnected and in conjunction with slow ones peripheral devices such as printers, with high-speed peripheral devices such as disk units, and

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other information sending and receiving devices such as Display terminals, work. The exchange of information between these different types of information sending and receiving Receiving devices, which may be remote from one another, are generally carried out via transmission lines and via matching circuits which are placed between the lines and each connected to these lines connected device arranged and each dependent of which each device has its own structure. ,

In the known data processing systems, information is exchanged between transmitting and receiving devices a central unit which is connected to the various Devices is connected to give commands to each of them via the appropriate adapter circuit. Certain improved facilities enable selective exchange of information between different devices, by connecting them to a central unit on the one hand via a data transmission module, which is assigned to each device and, on the other hand, are connected via a group monitoring module, which is connected to the various data transmission modules through the transmission lines and to the central unit. In this way, each data transmission module converts the exchange data into the suitable form and, if necessary, its storage in a standby memory, while the one assigned to the central unit Group monitoring module ensures control of the various parts of the facility. This group monitoring module namely is generally provided with an internal logic that enables him to operate the device independently monitor uzid thus the central unit of any task of the

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To relieve the monitoring of information exchange processes.

In the simplest case, this internal logic enables the group monitoring module to periodically and systematically perform the to scan different data transmission modules. However, this simple solution lacks adaptability, since it can only be applied with difficulty in certain specific cases in which the information exchange processes between the central unit and each data transmission module depending on the type of the associated device, the type of the problem being dealt with and the course of the processing procedure follow each other more or less randomly. In such a case it is therefore important that the group monitoring module is provided with internal logic which enables it to manage the information exchange processes according to an internal hierarchy that includes both the nature of each exchange and the depends on the type of device assigned to the relevant data transmission module.

To this end, another type of device for the selective exchange of information has been developed. One such a device contains a group module and data transmission modules, each assigned to a device and connected to the monitoring module by one and the same system of Transmission lines are connected, which is a closed Form a loop in which the information circulates synchronously and always in the same direction, independently from their starting point and their destination. This loop contains at least one information line, the words transmits serially with a predetermined length, each of which either the address of one of the data transmission modules or the

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between the group monitoring module and a data transmission module exchanged data corresponds to the address of which has previously been exchanged. At this facility can be an exchange of information either through the group monitoring module or by a data transmission modal and successively sending the

Address of the latter by the requesting module, then the transmission of the data to be exchanged by that of the modules that contains them. In a particular embodiment of this type of device, the modules are arranged in hierarchical order according to the urgency of the execution of the information exchange requests as a function of their relative positions along the loop.

This latter type of device has advantages, in particular in terms of adaptability and reliability by avoiding any synchronism errors and in at any moment a choice of the starting point and the destination point of any information by the group monitoring module is made possible. The adaptability of the use of such a device is limited, however it does not allow the selective exchange of information directly between the various devices. Also need the number and the respective positions of the organs connected to the data transmission modules of the same loop one for must always be determined before the facility is put into operation. The group monitoring module is supposed to control the system of the modules assigned to the devices according to a hierarchical order that corresponds to the urgency the execution depending on the number and type of those connected to the group monitoring module

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Device is predetermined.

One of the aims of the invention is to enable a selective exchange of information directly between two sending and receiving To enable receiving devices.

Another aim of the invention is an exchange of information between a transmitting device and / or a receiving device and any remote data processing unit to enable.

A further aim of the invention is to enable the addition of new devices to a device for the selective exchange of information without changing the already existing device for the exchange of information between devices.

In a subsystem, which consists of a group of devices, the information about the device according to the invention exchange, the aim of the invention is to enable the addition of new devices without having to configure the To know the subsystem.

A further aim of the invention is an exchange of information to enable between separate stations, each having at least one transmitting device and / or receiving device.

Yet another object of the invention is to facilitate the transmission of data resulting from processing by a transmitting device transmitted information result to a receiving device

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to enable.

Lie facility for the selective exchange of information between transmitting and receiving devices of a system of η stations St. . St ... St, with a channel to connect the ver-1 j η ^b

different stations St .. St. . St among each other and with

1 J η

devices for monitoring the transmission of information between the transmitting devices and the receiving devices, is characterized according to the invention in that the monitoring devices from a group of η station transmission modules MO ..MO ₁ . .MO exist between the connection channel and the St. , or St ... or St are connected so that the modules MO ..MO .. .MO data processing units P ..

or P ... or P and memory M. . or M. . or .M included, J η ^v 1 jn

in which programs s .. or s ,. . or s are entered that depend on the configurations of the St. . St ... St dependent and can be executed by the data processing units P ... or P ... or P, that the data processing unit and the programs contained in the memory of each module enable it to carry out the information exchange processes between the modules by means of a control command coming from another module To monitor the devices of the station connected to it and the devices of the other stations and to issue a control command to another module so that this in turn monitors the information exchange processes between the devices of the station connected to this other module and the devices of the other stations, so that the selective exchange of information between transmitting and receiving devices of the system of η

St .. St ... St as a sequence of Informa-1 J η

exchange monitoring is carried out by the group of modules MO MO ... MO.

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Further features and advantages of the invention emerge from the following description of exemplary embodiments of the invention. In the drawings show:

Fig. 1 is a schematic diagram of the device according to the

Invention for the selective exchange of information,.

2 shows an exemplary embodiment of two modules MO.

and MO, of the system MO. . MO of the Einrichk In

device according to the invention,

Fig. 3 is a flow chart showing information exchange

indicates operations between the two modules

MO. and MO of Figure 2 can expire, J k

and

Fig. 4 shows an embodiment of the circuits of a

ModuLs MO., Through which a St. Infor-

J J

exchange information with other stations

can associated with the device according to the invention.

The device according to the invention for the selective exchange of information between transmitting and receiving devices System of η stations St. . St contains η station monitoring

1 η

modules, of which the modules MO, MO. and MO shown in FIG are, and a connection channel BUS, which connects these η modules with each other. Each of the modules MO. . MO is

1 η

connected to a station that has at least one transmitter and

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/ or contains at least one receiving device. Therefore, in Fig. 1, the module MO is connected to the station St, the at least contains a transmitting device OE and at least one receiving device OH. The same applies to the module MO., Which runs through the station

St is connected to the devices OE and OR, and for the y y y

Module MO, which is connected by the station St with the devices OE and η η η

OR is connected. The modules MO, MO. and MO consist of η 1 j η

Data processing units, denoted by P, P. and P, respectively are, and from memories M or M. or M, which are connected to the data processing units and in which programs

s or s or s are entered. The programs s are in 1 j η ^{s fe fe} 1

Built depending on the configuration of station St, d. H. depending on the devices OE and OR contained in this station. The programs are also shown in the configuration the station St., d. H. of the devices OE. and OR. this sta-

J J J

tion depends, and the programs s depend on the configuration

the station St, ie the devices OE and OR of this station remove na

pending. The unit P. is, like the units of the other modules, connected on the one hand to your Kanal BUS and on the other hand to station St. The unit P is connected to the memory M, so that by addressing this memory, the programs are read and these programs are executed. aside from that by addressing an available zone of this memory, the unit P. can, if necessary, from a transmitting device store incoming information by writing it into the named zone and reading it out later to transfer it to a Receiving device to transmit. By running the programs s. allows the unit P. the module MO. to exchange information with the other modules either through dialogues on the BUS channel or through dialogues with the station St. Information with

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to exchange the devices of this station, or possibly the storage of information in the memory M., the the module MO. to one of the receiving devices of the St ..

St .. St should be transferred. By a control command that has

y ⁿ

the BUS channel comes to the MO module, the P.

J J

see the programs to respond to an information transfer request that either originates from the module, who generated the control command, or from one of the devices OE and OR of the station St. When the control command sends the module

y y y

MO instructs on an information transfer request coming from the station St to answer, module MO wins. the dominion over the BUS channel that shaped him to turn one of the other modules, so that this the information to be transmitted to the request of the station St. sends or receives. If the control command from another module controls module MO. instructs on a through

information transfer request given to that other module to answer, the module MO. subordinate to this other module, which has control of the BUS channel. In this The latter case is carried out by the module MO., with or without the previous one Processing, the transmission of information that has been commanded by the other module, d. H. the transfer, which results from a request given by one of the devices of the station connected to the main module will. Depending on the type of control command that the ModuL MO. receives, it thus becomes either the main module for the dialog traffic via the BUS channel, so that the exchange of information between the devices of the station St. and the devices of the other stations are monitored, or to the subordinate module of another main noihils l 'for the dialog traffic via Jon BUS channel, if this latter module, which sends the information

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- OK -

Exchange processes between the devices of the station connected to it and the devices of the other station are monitored, information wants to exchange with the devices of station St. on

In this way, the device according to the invention enables everyone

of the modules MO. , MO. . MO. the information exchange pre-1 J η

monitor the transitions between the devices of the station connected to it and the devices of the other stations, gaining control of the BUS channel, and ceding control of the BUS channel to another module in order to allow it to carry out information exchanges between itself monitor the devices of the assigned station and the devices of the other stations. In a preferred embodiment of the invention, for example, the programs contain s of the module MO. Instructions that allow the unit P. to rule over the. Transfer channel BUS to the following module. The following module is not necessarily the module that immediately follows the module MO. aiii is arranged on the channel BUS, it corresponds to a previously defined classification sequence

of the modules MO .. MO ... MO. The classification sequence sees 1 J η

for example, so that the module MO. following module the module AlO. obtained by entering the address of the

Module MO is increased by one.
J

2 shows an exemplary embodiment of two modules MO. and MO of the device according to the invention, which are connected to the stations St. and St, which are each slow peripheral

J k

Devices and fast peripheral devices include: the devices PL ·.

and PR. in the station St. and the devices PL ·, and PR ₁ in the JJ kk

Station St ₁ . The memory M. contains programs s. And a k ^y JJ

Zone I. for entering information from the station

St originate or are intended for this station. Likewise entj

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the memory holds M programs and a zone I for that

K iC K

Entering information from station St or are intended for them. It is agreed, for example, with d) the information originating from the station St

y y

and with (I) the information originating from the station St to call. One in unit P. of module MO. contain-

J J

ne circuit AB. for connection to the BUS channel, this module allows the aforementioned control commands in the form of messages to deliver or receive through which the module MO. work as a main module or as a subordinate module

J I

and to cede control of the BUS channel to the following module. The circuit AB. allows the module MO. except -

J J

to transmit or receive information to be transmitted via the BUS channel. The unit also contains P. with the circuit AWAY. connected control circuits C., a circuit AM. for access to the memory M. and input / output circuits ES., On the one hand with the slow peripheral devices PL and the fast peripheral devices PR and on the other hand

J j

are connected to the control circuits C. The one with the memory

M. connected circuit AM. is also with the circuit AB., with the circuits C. and with the fast peripheral devices PR. tied together. In the same way is the module MO

J ^k

of Fig. 2 with the channel BUS through a circuit AB for connecting

JtC

Finally connected to this system, the circuit AB in the processing unit P of the module MO is included. the Processing unit P also includes control circuits C,

κ κ

connected to the circuit AB, input / output switch

tungen ES, the one hand with the slow peripheral devices κ

PL and the high-speed peripheral devices PR and on the other hand are connected to the circuits C ₁ . The unit P is

k Ic

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also holds a circuit AM for access to the Memory M associated with this memory as well as with the circuit

AB, with the circuits C and with the fast peripheral k κ

Devices PR, is connected. Therefore, a polling signal from the Circuits C. and Aß. to the circuits AB, and C of the module MO, which then prepares to a first message from module MO. to recieve. By accessing the programs contained in the memory M can the circuits C. then those of the module MO. evaluate received messages, specifically for the transmission of information possibly through zone I of storage tank M

k k

neither between the circuit AB and the fast peripheral

K.

Devices PK, or between the circuit AB and the slow ones peripheral devices PJL, by in this latter case via the Circuits C is gone. Through control signals sent by the

xC

Circuits C are delivered to the circuit AM (likewise can control signals from the circuits C. to the circuit AM. output), either the circuit Aß or the

Circuits C or the fast peripheral devices PR on one κ te

Read out the command previously received by the circuits C from the memory M or write it into it. FIG. Z shows the case in which information transmitting devices and / or information receiving devices, which operate at very different speeds, are connected to the device according to the invention at the level of one and the same station. In this case, this facility offers the fastest devices of the various stations the possibility of direct access to the memories of the corresponding modules via the circuits, such as the circuits

AT THE. and AM,, of the modules MO and MO. J k »jk

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To better illustrate how to exchange information is carried out between the various stations by the device according to the invention is shown in FIG a schedule is given. This flow chart shows how the exchange of information between two modules MO. and MO

J ^k

can be carried out, which are arranged in any manner on the channel BUS of FIG. If the module MO. the rule via the BUS channel (for example from the one on the BUS previous module) in order to communicate with another module through its own internal facilities consisting of the unit P. and the programs contained in his memory M., he determines whether it is from the Station St. originating information (I.) is to be delivered to the channel BUS. If the module MO. Submit information (I.) it sends a call to a module MO to be informed by a message that commands it to receive the information (I.), as a subordinate module. If the module MO

is ready, the information (I) will be transferred from the

Module MO. executed in the module MO. If all Infor-J k

mations (I.) have been transferred, the module MO. to the Module MO sends an end-of-transmission signal, which returns module MO to its initial position with regard to the BUS channel, however, it enables him to transmit the information (I.) to another receiving device of the station St. if the module MO. does not have to provide any information, but rather information (I) of the module MO has to receive which

iC K.

come from a transmitting device of station St, the module sends

MO. a call to the module MO to send a message, who orders him to submit the information (I) as a subordinate Module. After the module MO has transferred the information (I) to the module MO. executed

k j

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has, it sends a signal to him that the end of the transmission this indicates information, and is then in the initial position with respect to the channel BUS. The information (I) can after a possible storage in the memory M. from the module MO. into one of the station's receiving devices St. to be transferred. In the case in which the module MO. Information (I.) has to submit, he transmits as soon as he has determined has that the module MO has received the signal which indicates the end of the transmission of the information (I.) that he gave to him, one last message to another Module, which is the following module, for example, in order to cede control of the BUS channel to him. In the case in which module MO. The recipient of information (I) is

J κ

it transmits as soon as it has received the signal indicating the end of the transmission of this information from the module MO, also a last message to another module to relinquish control of the BUS channel to it. In that case, in which the module MO of another module is the master

shank receives via the BUS channel and has no information to deliver or receive from another module, he immediately cedes control of the BUS channel to another module with a single message that is transmitted over the BUS channel for example, it is the following module. If the following module is given by the index j + 1 and if this index corresponds to the index k, then the module MO receives this rule and it can, if necessary, the module MO. used as a subordinate module. If the index j + 1 is different from the index k, the exchange of information between other than the modules MO. and MO ₁

J k

executed.

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4 shows an exemplary embodiment of a module MO. for monitoring the station St., the slow peripheral devices PL ·, and the fast peripheral devices PR. contains. The module MO. contains the circuits AB., C., AM., ES. the processing unit P. and the memory M ·. In FIG. 4, not all parts of the circuits C. are given, but only those parts which are necessary for understanding the mode of operation of the module MO. at rough exchange

of information with other modules are essential. The circuits C. contain a permanent memory juM in which microprograms are entered, which are structured so that the unit P. in connection with the channel BUS, with the memory M. and

J J

with station St or directly with the various devices of the

Station St. can work, depending on whether the station St. f the necessary ^facilities: ir has to monitor the dialogue processes of the equipment or not they with the circuits ES. contains. The memory iiM is addressed by an address register rA and the content of this memory is read by a memory output register rL. All instructions and data circulating in the circuits C. pass through an accumulator register ACC. Another register RG for the temporary storage of certain data obtained from the circuits C. allows these data to be compared in a comparator C with other data temporarily stored in the register ACC, and in de na case that said data Data are the same to execute branches in the memory üM. These branches are carried out, for example, in that certain flip-flops of the register rL are connected to the inputs 41 of an address generator GA, which is connected to the register rA via its outputs 42, and in that the transmissions of signals from the register rL into the address generator GA via AND Circuits 43 are enabled. So long

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the module MO. is not used as the main module for dialog operation on the BUS channel, this module is in the initial position (if it is not used as a sub-module by another module at this specific point in time). By a call coming from the channel BUS and from the circuit AB. is delivered to the input 44 of the address generator GA, the module MO. communicated that another module would like to send a first message to him. Upon receipt of this call, the address generator GA allows the register rA to access a first microprogram to the module MO. by control signals sent from the output of the register ACC to the circuit AB. to prepare to receive the first message. Through the circuit AB. can then the module MO. the module that made the call

J J

that he is ready to receive his message. The circuit AB. consists, for example, of registers for storing the messages and information received or to be sent to the BUS channel, as well as transmission circuits (consisting, for example, of AND circuits), which transmit the messages to the BUS channel and the ACC register and the information transmission to the BUS channel and to the AM circuit. allow. The module MO. The first message delivered is sent to the circuits C. via the outputs 45 of the circuit AB. which they identify by microinstructions contained in the memory iiM as an instruction indicating whether the module is a main module or a subordinate module with respect to the BUS channel. This first message also gives the module MO its name.

J arrival by giving him the address of the transmitter module.

Through the output of the ACC register, which is connected to the inputs

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the circuit AB. is connected, the module reports MO. the transmission module that the first message it has delivered has been identified and that it is ready to possibly receive a second message in the event that it is used as a sub-module for the transmission of information through the channel BUS . In this case, the message received and identified by the circuit C. For access to the memory M. is an address register A, which is in the circuit AM. is contained, connected via its inputs to the output of the register ACC and via its outputs to the memory M. This memory is written into a register E and read out through a register L. Two multiplexing circuits MxE and MxL _1, which are connected to the inputs of register E and the outputs of register L, allow information to be written and read through the circuit AB., the circuits C. and the high-speed peripheral devices PR. and reading JJ

of the programs through the circuits C .. These multiplexers MxE and MxL are through the output of the register ACC controlled, which is connected to their inputs 47 and 48, respectively. Therefore, the control signals generated by τμΜ in the memory Read instructions are set to the inputs 48 of the multiplexer MxL, so that the circuits C. the programs s. can read at least one address of the memory M, which is indicated by the register A. If the Module MO. Information (I.), which are stored in the memory M., to another module (main module or subordinate Module), control signals are sent by the

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Circuits C. to the inputs 48 of the multiplexer MxL so that the circuit AB. can read the information (I.) at the successive addresses of the memory M. indicated by the register A. If the module MO. on the other hand, information from another module has to be received and stored in zone I. of the memory M., control signals are emitted from the circuits C. to the inputs 47 of the multiplexer MxE so that the circuit Aß. Information can be written to the successive addresses of zone I., which are indicated by the register A. In the same way, the transfers of information between the memory M. and the high-speed peripheral devices PR. executed by further control signals which are output to the inputs 47 and 48 of the multiplexers MxE and MxL. For the transmission of information between the memory M. and the slow peripheral devices PL. -Who emitted by the circuits C. control signals and either to the inputs 4 7 and 48 of the multiplexers MxE and MxL or to the circuits ES. transferred with the slow peripheral devices PL. are connected. Via the connecting line 49, the circuits C. can send control signals to the high-speed peripheral devices PR. submit so that this information is transferred to the memory M. Through the same connection line 49, the high-speed peripheral devices PR. the circuits C report that they are through the module MO. have information to be transmitted to another station. A clock circuit H. contained in the circuits C. is connected to the various parts of the unit P. in order to ensure their synchronism (in a manner known per se, not shown in FIG. 4). In the case where the transmission of information between modules is carried out serially,

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the circuit H. is also connected to the channel BUS via the inputs 45 and the outputs 46 of the circuit AB. tied together. Therefore the module MO. can work with a synchronization through the signals received and output by this circuit H. which depends on the point in time at which a call from another module reaches it, and on the Time of propagation along the transmission lines of the channel BUS, which is necessary for a basic information, i. H. a signal from the module MO. is transmitted to another module that is in dialogue with it. The comparator Cp, which is connected to the output of the register RG is in an arithmetic and logical unit UAL of the unit P. contain. This unit UAL also contains an adder circuit AD, which connects to the outputs via its inputs and outputs or the inputs of the ACC register. This adder circuit allows AD by taking it out of the register ACC the address of the module MO. receives to increase this address, for example by one, by the address of the following module to win which of the module MO. is then sent in a first message via the ACC register to the module to which it receives the To relinquish control of the BUS channel after it has finished the information exchanges that it is performing Has.

The exemplary embodiment of the invention described above, which in the case of the exchange of information between slow and fast peripheral devices (such as those shown in Figs. 2 and 4) from different stations, enables the one offered by the device according to the invention Better understand opportunities. On this embodiment but the invention is by no means limited.

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-2O-

The invention is namely in any types of broadcast or Receiving devices applicable, such as a terminal or a data processing unit. One of these devices can also be a transmission control unit which is connected to a remote data processing unit. An institution according to the invention enables, for example, the exchange of information between devices that are approximately 1 km apart. You can also use Such a facility can transfer control in any order by means of suitable programming Carry out at the level of each module, but on condition that the various modules rule one after the other received via the BUS channel. When the information exchanges of a particular station through its own Module are monitored, allows the device according to the invention to add new stations by as many modules can be connected to the BUS channel without the operation of the device for carrying out the information exchange operations to change between the already existing stations. Likewise, the connection of a new station to the facility requires not that the technician involved knows the configuration of the subsystem or the existing system; it is sufficient, if he alone is the configuration of the station to be connected knows.

The information exchange operations indicated in Fig. 3 relate to the simple transfer of information from one module to another. If each module has a structure that enables it to process data, the facility provides according to the invention also the possibility of information

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process functions that are sent by a sending device, and to deliver the data resulting from this processing to a receiving device. If a module is related to the Channel BUS is in the starting position, it can contain information that comes from a transmitting device of the station connected to it, by processing commands that come from the station and the resulting data to a receiving device at the same station transfer. When a module is in control of the BUS channel, it can operate according to commands given by the one connected to it Station are given to process information either from a transmitting device of this station or from another module originate, and the data resulting from this processing either to another module or to a receiving device transmitted to the named station. If a module is replaced by another module that controls the BUS channel as a subordinate Module is claimed, it can process information according to commands given by this other module, which come either from this module or from a transmitter of the station that is connected to it, uiid the data resulting from this processing are transmitted either to a receiving device of this station or to the main module. The device according to the invention also enables the use of a module to be given in accordance with another module Commands to process information remotely and to evaluate the results of the processing in the station, which with another ModuL is connected. In the latter case, the information processing module is disconnected from the station that operates normally associated with him. A modification of the device according to the invention consists in at least one module without adding a station connected to it to add the

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selective exchange of information between sending devices and receiving devices of a system of stations through processing that the module is commanded by the stations.

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Claims (15)

- 23 claims: Iy facility for the selective exchange of information between transmitting and receiving devices of a system of η stations, with a channel to connect the various Stations with one another and with facilities for monitoring the transmission of information between the transmitting devices and the receiving devices, characterized in that the monitoring devices consist of a system of η station monitoring modules (MG .. MO ... MO) between the Connection channel and the stations (St.. Or St ... Or St) are connected, since the modules (MO .. MO ... MO) are data processing units (P .. or -P ... or P) and memory (M .. or M ... M) contain in which programs (s .. or 1 j η '^& 1 s ... or s) are entered, which are dependent on the configurations of the stations (St.. St ... St) and by the data processing units (P .. or P ... Or P) are executable that the data processing unit and that in the memory of each module The programs contained therein enable the information exchange processes to be carried out by a control command coming from another module between the devices of the station connected to it and the devices of the other stations and to issue a control command to another module, so that this in turn can carry out the information exchange processes between monitors the devices of the station connected to this other module and the devices of the other stations so that the selective exchange of information between transmitting and receiving devices of the system of η stations (St.. St ... St) 1 J η as a succession of information exchange monitors carried out by the system of modules (MO ... MO ... MO). 1 } η 509819/0841 2. Device according to claim 1, characterized in that the units (P .. P ... P) circuits (AB .. or AB ... or AB) for connection to the connecting duct, input / output η - Circuits (ES .. or ES ... or ES) that start with stations 1 J η (St .. or St ... or St) are connected, and control circuits (C .. or C .. or C) included with the circuits (AB.. 1 j η 1 or AB ... or AB), with the circuits (ES.. or ES ... or j η 1 J ES) and connected to the memories (M .. or M ... or M) η * 1 J η are, and that the circuit (C.) in with the circuits (C.. C) is constructed in a comparable way so that it can be controlled by one of the control commands from a module of the system (MO.. Iv] O) ¹ 1 η originates, which is not the module (MO.), receives information exchange calls via the circuit (AB.), given by the devices of the station (St.) and transmitted through the circuits (ES.) so that it responds to the calls, by reading the programs (sj), on the one hand, the transmission of information through the circuit (AB.) and on the other hand through the circuits (ES.) controls. and so that, after it has responded to the calls, a control command generated and transmitted by the circuit (AB.) to another module, so that the modules (MO.. MO.. MO) one after the other 1 j η others receive a control command through the connection channel in order to selectively exchange information between transmitting devices and receiving devices of the stations (St.. St.. St) 1 j η respectively. 3. Device according to claim 2, characterized in that the circuit (C.) contains devices which transmit calls to modules of the system (MO.. MO) via the circuit (AB.), to which the module MO. heard so by the circuit 509819/0841 AWAY. in response to the information exchange calls made by the Devices of the station (St.) are given, information transmissions are executed. 4. Device according to claim 3, characterized in that the circuit (C.) contains devices so that they can be called by calls, which consist of modules of the system (MO - .. MO) with the exception of the module Ί η MO · come over the circuit (AB.), Information exchange requests J J gen that are given by the modules to make it respond to the calls by reading the programs (s.) controls the transmission of information on the one hand through the circuit (AB.) and on the other hand through the circuit (ES.) and so that it sends a signal to each of these modules, which indicates to him that the module (MO.) has responded to your calls. 5. Device according to claim 2 and 3, characterized in that the circuit (G.) is connected to a circuit (AB.) Fixed memory (yiM) in which microprograms are entered, and a comparator (C) which is connected to the memory den is, so that the circuit (C.) the control commands and those from modules With the exception of the module (MO.), calls originating are identified by comparing them with reference data in the comparator (C) contained in the microprograms of the read-only memory (uM), so that the module (MO.) the information exchange processes the devices of the station (St.) monitored with the devices of the other stations and thus he on the information exchange requirements that are given by these other modules. 6. Device according to spoke 5, characterized in that the 509819/0841 Circuit (C.) also contains a register (ACC) which communicates with the memory (uM) via its inputs and via its outputs, with the circuit (AB.); with the memory (M.) and with the circuits (ES.) and also via its outputs with the Comparator (C) is connected so that the circuit (C.), P.
which has identified the control commands and the calls coming from modules with the exception of the module (MO.), which identifies the information exchange calls given by the devices of the station (St.) and the said other modules by placing them in the Comparator (C) are compared with reference data from P. the microprograms of the permanent memory (uM) can be read in order to access the programs (s
register (ACC). in order to access the programs (s.) in the memory (M.) 7. Device according to one of claims 1 to 6, characterized in that that if η address-η belong to η modules (MO... or MO ... or MO) and in a certain order are arranged, each of these modules, except for the modules that have received the first and the last address, the information exchanges the station connected to it is monitored by a control command that comes from the module, which has the previous address in the given order, and issues a control command to the module that contains the addresses in the given order has the following address, so that it in turn can initiate the information exchange processes of those associated with it Station monitors. 8. · Device according to claim 7, characterized in that the module of the system (MO,. MO ... MO), which the last address in the given order, the information exchange processes of the S.tation connected to it by a control command 509819/0841 monitors which one comes from the module that has the last address in the given order and sends a control command to the Module, which has the first address in the given order, so that it in turn carries out the information exchange processes of the station connected to it, before it also issues a control command to the module that contains the second address in the given order. 9. Device according to claims 6, 7 and 8, characterized in that that the comparator (C) in an arithmetic P.
and logic unit (UAL) of the circuit (C.) is included, which is connected via inputs and outputs to the register (ACC) in order to store the address of the module (MO. ) to calculate the following address and to transfer it through the same register to the circuit (AB.), so that the module (MO.) issues a control command to the module following in the sequence. 10. Device according to one of claims 2 to 6, characterized in that if the memory (M.) also contains a zone available for entering information, the circuit (C.) with this memory via an access circuit ( ) such AM., that the information is temporarily stored, from the module (MO) in th ^e station (St) J J through the circuits (ES.) and into the other modules of the system (MO .. MO) through the circuit (AB.). 11. Device according to claim 1O, characterized in that the circuit (AM.) on the one hand with the circuit (AB.) and on the other hand with at least one transmitter of the station (St.) is connected in such a way that control signals sent by the switching 509819/0841 - 23 - tang (C.) to the circuit (AM.) from which J J Transmitting device originating information is temporarily stored in the memory (M.) by direct access before it is transmitted directly through the circuit (AB.). 12. Device according to claim 11, characterized in that that the circuit (AM.) is also connected to at least one receiving device of the station (St.) in such a way that control signals, from the circuit (C.) to the circuit (AM.), information coming from the circuit (AB.) temporarily are stored in the memory (M.) by direct access before they are transmitted directly to the receiving device will. 13. Device according to claim 11 and 12, characterized in that the circuit (AM.) A register (A) for addressing the memory (M.) for writing into this memory and reading from this memory, which through its inputs with of the circuit (C.) and through its outputs connected to the memory (M.), a register (E), which through its outputs is connected to the memory (M.) in order to enter this information, a register (L), which through its inputs with the memory (M.) is connected to read in this information, a multiplexing circuit (MxE) through its outputs with the register (E) and through its inputs with the circuit (AB.), with the circuit (C.) and with at least one transmitter J J advises the station (St.) is connected, and a multiplexing circuit (MxL), which through their inputs with the register (L) and through their outputs with the circuit (AB.), With the circuit (C.) and with at least one receiving device of the station (St.) such 50981 9/0841 that is connected for one of the circuit (C.) to the register (A) address delivered the content of the memory (M.) at this address by the circuit (AB.) Or by the circuit (C.) or is read by a receiving device of the station (St.) by three control commands that are sent from the circuit (C.) to the circuit (JVIxL) and that the entry in the Spetcher (M.) at this address through the circuit (AB.) Or through the circuit (C.) or through a transmitter of the station (St.) three more control commands ensue, which are output from the circuit (C.) to the circuit (MxE). 14. Device according to one of claims 1 to 13, characterized in that that if an information exchange on promotion the dem Module (MO.) Through one of the transmitter devices of the stations (St .. St ... St) is given and commands for processing the information η contains transmitted by one of the stations' transmitters (St.. St ... St) as requested, the unit ^ P.) Also Contains means for executing the commands so that the module (MO.) Processes the information it receives in order to to transmit the result of this processing as requested. 15. Device according to claim 14, characterized in that the device also contains at least one module whose circuits are comparable to those of the modules (MO.. MO ... MO) and which is connected to these modules via the connection channel, so that by an information exchange request, from one of the transmitters of the stations (St.. St ... St) the module (MO.) is given, which instructions for processing the information sent to the module (MO.) by one of the stations' transmitting devices (St .. St .. .St) in accordance with the request 5 0 9 8 19/0841 -3O- This information is processed by the additional module by one of the module (MO) originating call to transfer the result of this processing is executed as requested. 509819/0841 3i Blank page