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The ER-A771 inter-register communication (IRC) system consists of one master machine and

up to 15 satellite machines which are all interconnected by the local area network (LAN) to

provide data transmission among them. This system allows the manager to exercise centralized

control over the satellites through the master.

• One of the satellites may be used as a back-up master.

Local Area Network (LAN)

Satellite

Max. 15 satellites

Master

Satellite

1) The message as shown below is displayed at the master when engaged in IRC

transmissions.

ex.:

  S E N D I N G   D A T A

The above message is also displayed at the satellite which is engaged in transmission for

system resetting.

2) The machine number of the satellite that is communicating with the master is displayed

at the master during IRC transmissions.

ex.:

   0 0 0 0 2 2

In this case, the machine number of the satellite is “000022.”

If an error occurs, a corresponding error message is displayed.

To clear an error message, press the 

CLEAR

 key.

For error messages, see the table below.

Error messages

(Default) 

Description

ATTEMPT RETRY?

BUSY

CODE NOT FREE

IS SIGNED ON

LACKING MEMORY
NO AUTHORITY

NON RESET

NO REPLY/BACKUP

NO REPLY/MASTER

POWER OFF

SYSTEM CLOSED

SYSTEM OPENED

T-LOG FULL

TYPE ERROR

UNDIFINED CODE

• This message prompts you to retry communication with the machine 

which you have failed to communicate. 

• The file in the master and that in the satellite are not of the same 

type.

• IRC clerk sign-on error (when full clerk resetting is executed).
• The GLU code, drive-through code or related file memory is not enough.
• The clerk who entered a GLU/PBLU code are not authorized.
• IRC initial downloading before resetting
• The back-up master doesn't reply to the request.
• The master doesn't reply to the request.
• The target machine is turned off.
• Entry is attempted in closed store state.
• Resetting is attempted in open store state (only when inhibited).
• T-LOG buffer is full. 

• The specified clerk code is not present in the master list.
• The entered GLU/PBLU code is not listed.

• The entered GLU/PBLU code is in use.

• The specified clerk has signed on at another machine.

• The target machine is busy. 

When the open store operation is performed at the master, the IRC system is opened and the

registration function becomes available at all the machines in the IRC system. The following

types of communications between the master and satellites are allowed.

• Sending a request for the satellite to receive data (T-LOG polling)

• Sending a response to inquiry from the satellite

• Sending data to the T-LOG buffer

• Sending a request for T-LOG polling

• Sending a request for updating of the GLU/PBLU file

• Inquiring for data on the GLU/PBLU

Select OPEN STORE from the PGM2 MODE window and

press the 

ENTER

 key.

•

You can also perform the open store operation at each satellite. Once the open store

operation is performed at a satellite, you can make registrations at the satellite. When you

perform the open store operation at the satellites, T-LOG polling will not take place.

•

The open store operation cannot be performed at any machine whose terminal number has

not been programmed.

•

If a transmission error occurs while the open store operation is being performed, the master

displays and prints (journal printer) the machine number of the satellite that encountered the

error. When the master has been programmed to enable the system retry function*, a prompt

to retry the open store operation will be displayed.