JPH05334228A - Address setting system for field equipment supervisory management system - Google Patents

Abstract

PURPOSE:To operate the address setting of a communication interface device from a personal computer only by a software. CONSTITUTION:A personal computer 6 of a host device is connected through an RS232C I/F 7 to each communication interface device 2a-2c, and various data from each transmitter 11-1n are collected by a communication, and the range change of the transmitter or the like is operated by the communication. Then. the communication is operated with one IF module 4 in which a key switch 5 for an address is turned on and the serial number of the IF module is read. Afterwards, the communication is operated through the IF module 4 with the transmitter 1, and the address of the IF module 4 and the tag number of the transmitter connected with the pertinent IF module 4 are registered in the data base by making them correspond to each other. This procedure is repeated each time the key switch 5 of each IF module 4 is turned ON, and the address of each IF module 4 and the tag number of the transmitter 1 connected to the pertinent IF module 4 are registered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention performs communication using a communication interface device which relays between a field device having a communication function, that is, a transmitter and a personal computer (hereinafter abbreviated as a personal computer) which is a host device. Regarding the address setting method of the field device monitoring management system,
In particular, the present invention relates to an address setting method in which the address of the communication interface device is set from a personal computer only by software.

[0002]

2. Description of the Related Art Conventionally, in a field device monitoring and management system of this type, a repeater having a function similar to that of a communication interface device, a so-called gateway, is set by a hardware jumper in the gateway so that a call is transmitted to the gateway. Generally, the tag number of the container and the address set in hardware by the jumper are associated one-to-one and registered in the database of the personal computer.

In this system, if there are two or more gateway modules having the same address in the same system, a communication collision occurs and communication cannot be performed. Also, if the wiring between the gateway and the transmitter is incorrect, rewiring is expensive, so
There is a request to reset the gateway address.

[0004]

However, in the above-mentioned conventional address setting method, since the jumper is a small part, it is necessary to be careful when replacing it. Moreover, since the jumper is a contact point, the contact part may be corroded by the atmosphere. Further, if the address is set by hardware, the number of parts is increased, so that there is a problem that reliability is reduced accordingly.

[0005]

In order to solve the above-mentioned problems, the present invention comprises the following means. That is, in the above-described field device monitoring management system, the communication interface device is composed of a number of interface modules corresponding to a plurality of transmitters, and each interface module is provided with an address setting switch. And the personal computer, which is the host device,
The address setting switch of each interface module communicates with one interface module in the ON operation to read the serial number of that interface module, and then communicates with the transmitter via this interface module to By registering in the database the address of the interface module and the tag number of the transmitter connected to the interface module, this procedure is repeated each time the address setting switch in each interface module is turned on. The interface module address and the tag number of the transmitter connected to the interface module are registered.

[0006]

Therefore, according to the present invention, the address of the communication interface device can be set from the personal computer only by software.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 is a schematic block diagram showing an embodiment of an address setting system according to the present invention. In the figure,
1 ₁ to 1 _n are a plurality of transmitters with built-in communication functions as field devices, and 2a, 2b and 2c are a plurality of transmitters 1 ₁ to ₁
1 _n is a module-type communication interface device that can be connected to every several units, and these communication interface devices 2a to 2c are connected to the power module 3 and to each oscillator with the power module 3 in common. Interface module (hereinafter referred to as an IF module) 4 and an address push button switch 5 provided in each IF module 4.

[0008] Further, 6 is a personal computer which is a high-order device,
This personal computer 6 has RS232C for its interface.
Each communication interface device 2a to 2c through I / F7
, And collects various data from each of the transmitters 1 ₁ to 1 _n by communication, and changes the range of the transmitter by communication. Then, the address push button switch 5 in each IF module 4 communicates with one IF module 4 that is in the ON operation, and the I
Read the serial number on the F module.

Then, by communicating with the transmitter 1 through the IF module 4 and registering the address of the IF module 4 and the tag number of the transmitter 1 connected thereto in the database in association with each other. This procedure is repeated every time the address push button switch 5 in each IF module 4 is turned ON, and the address of each IF module 4 and the tag number of the transmitter 1 connected thereto are registered.

The tag number is for identifying where the transmitter 1 is used, and the tag number is changed when the place of use changes due to maintenance of the transmitter or the like. The serial number is set at the factory (according to the number of shipped units) and is used as an address for communication.

Next, the operation will be described with reference to the flowchart shown in FIG. Here, the personal computer 6 is the transmitter 1 and each I
In order to make the F modules 4 correspond one-to-one, first, a signal that enables the address registration of one IF module 4 is transmitted to the IF module 4 as a start signal ST (see FIG. 2) (step 50). Next, the personal computer 6 transmits a signal notifying that the address registration of the IF module 4 is completed to the IF module 4 as a stop signal SP (step 51). If there is no such signal, the process proceeds to step 52.

At this time, if the address push button switch 5 of the IF module 4 is in the ON operation state, the SIF module 4 communicates with the personal computer 6 and outputs the address signal A
The message of D and the tag number TG (FIG. 2) is transmitted to the personal computer 6. As a result, the personal computer 6 receives the address signal transmitted from the IF module 4 and the message of the tag number of the transmitter 1 connected thereto, and registers the message in the database (step 52).

Next, the personal computer 6 sends a registration completion signal (reset signal) that the message has been received to the IF module 4 (step 53). Thereafter, the IF module 4 receives the reset signal and transmits a signal that the registerable state is reset to the personal computer 6, and the personal computer 6 receives the signal (step 54). After that, the push button switch 5 for address of the next IF module 4
The in the ON state, by repeating the address setting procedure described above, corresponding to the tag number of the transmitter 1 _n-1 to 1 _n connected thereto and the address of the IF module 4 one after another on a one-to-one, It can be registered in the database of the personal computer 6.

At this time, when the address push button switches 5 of two or more IF modules 4 are simultaneously pressed, the personal computer 6 judges that the address is a specific IF module, and based on the address signal, the registration completion signal is sent. To the IF module. However, since the specified IF module itself does not transmit the address and the tag number,
It does not send a reset signal. By this, I
The personal computer 6 can determine that the address push button switch 5 of the F module 4 is incorrect.

[0015]

As described above, according to the address setting method of the present invention, communication is performed only with the IF module in which the address setting switch of each IF module constituting the communication interface device is pressed, and the IF module is communicated. By registering the tag number of the transmitter connected to the one-to-one correspondence with the database of the personal computer,
The address setting of the IF module can be performed by software.

Further, if there is an error in the wiring between the communication interface device and the transmitter, the addresses of the IF modules and the transmitters connected to the IF modules can be simply changed by replacing the power module above the interface device. Since the registration can be re-registered, it is not necessary to change jumpers and the like, and the handling is easy, and the reliability is improved by reducing the number of parts.

[Brief description of drawings]

FIG. 1 is a schematic block diagram for explaining an embodiment of an address setting method according to the present invention.

FIG. 2 is a diagram showing an example of a communication frame used for explaining the operation of the present embodiment.

FIG. 3 is a flowchart illustrating the operation of this embodiment.

[Explanation of symbols]

1 ₁ to 1 _n transmitter 2a to 2c communication interface device 3 power module 4 communication interface module (SIF module) 5 address setting push button switch 6 personal computer 7 RS232CI / F

Claims (1)

[Claims] 1. A plurality of transmitters having a built-in communication function, and a host device which collects various data held by the plurality of transmitters by communication and changes the range of each transmitter by communication. In the field device monitoring and management system including a communication interface device connected between the plurality of transmitters and a host device, the communication interface device includes a number of interface modules corresponding to the plurality of transmitters. Each of the interface modules has an address setting switch, and the higher-level device communicates with one interface module whose address setting switch of each interface module is in the ON operation to communicate with the serial number of the interface module. Read, and then this interface By communicating with the transmitter via the interface module and registering the address of the interface module and the tag number of the transmitter connected to it in the database, this procedure is performed. An address setting method for a field device monitoring management system, characterized in that the address of each interface module and the tag number of the transmitter connected to it are registered repeatedly every time the setting switch is turned on.