JPS6478546A - Polling system - Google Patents

Polling system

Info

Publication number
JPS6478546A
JPS6478546A JP62234807A JP23480787A JPS6478546A JP S6478546 A JPS6478546 A JP S6478546A JP 62234807 A JP62234807 A JP 62234807A JP 23480787 A JP23480787 A JP 23480787A JP S6478546 A JPS6478546 A JP S6478546A
Authority
JP
Japan
Prior art keywords
transmission speed
controller
address
terminal
transmits
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62234807A
Other languages
Japanese (ja)
Inventor
Riichi Yasue
Osamu Kunisaki
Koichi Kimura
Tetsuo Oura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62234807A priority Critical patent/JPS6478546A/en
Publication of JPS6478546A publication Critical patent/JPS6478546A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To allow respective terminal equipments to achieve best performance by sending polling commands by the transmission speed switching circuit of a terminal controller at a transmission speed inherent to the terminal equipment, and receiving response commands. CONSTITUTION:The controller 7 makes a terminal equipment address to (00)16, reads out transmission speed information (f) in the address (00)16 from a table 8, and transmits it to the transmission speed switching circuit 5 as a transmission speed signal. After ending the setting of transmission speed, the controller 7 transmits the address (00)16 to a data processing part 6 in order to initiate a polling start, then receives an end report from the part 6. Upon completion, the controller 7 makes the terminal address to (01)16, and repeats the processings mentioned above. The address is changed cyclically as (02)16-(FF)16. The processing part 6 receives a start signal from the controller 7, while the transmission speed switching circuit 5 transmits a polling command to a transmission line 4. The part 6, in receiving a response from terminal equipments 2, 3, reports the end of transmission to the controller 7.
JP62234807A 1987-09-21 1987-09-21 Polling system Pending JPS6478546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62234807A JPS6478546A (en) 1987-09-21 1987-09-21 Polling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62234807A JPS6478546A (en) 1987-09-21 1987-09-21 Polling system

Publications (1)

Publication Number Publication Date
JPS6478546A true JPS6478546A (en) 1989-03-24

Family

ID=16976698

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62234807A Pending JPS6478546A (en) 1987-09-21 1987-09-21 Polling system

Country Status (1)

Country Link
JP (1) JPS6478546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278343A (en) * 1988-06-20 1990-03-19 Hitachi Ltd Communication control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0278343A (en) * 1988-06-20 1990-03-19 Hitachi Ltd Communication control system

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