Sharp UP-3500 (serv.man34) User Manual / Operation Manual ▷ View online
48
1.
Enter the PGM2 mode from the mode selection window.
2.
Select “1 READING” from the displayed menu.
The READING window will appear.
3.
Select “46 MWS CONFIG” from the displayed menu.
(To display the hidden menu for reading, scroll the screen to the right or left using the right-pointing or
left-pointing arrow key down on the screen.)
The PLEASE SELECT OUTPUT DEVICE. dialogue will appear.
left-pointing arrow key down on the screen.)
The PLEASE SELECT OUTPUT DEVICE. dialogue will appear.
4.
Select “1.DISPLAY” or “2.PRINT.”
If a receipt/report printer is not set up for the terminal, “1.DISPLAY” is the only valid choice.
Terminal No.
Time-out time (20 sec)
GATEWAY No.
Time-out time (20 sec)
GATEWAY No.
Sample Print (master)
NOTE
10. Reading the contents of the Manager Work Station
(MWS) programming – master and satellite
49
4
System Back-Up
The IRC system incorporates a back-up system.
One of the satellites can be designated to serve as a back-up master.
For the setup of a back-up master in your IRC system, please consult your authorized SHARP dealer.
One of the satellites can be designated to serve as a back-up master.
For the setup of a back-up master in your IRC system, please consult your authorized SHARP dealer.
When both the master and back-up master are in order, the system works in the following sequence:
1) Each satellite sends updated GLU data (and clerk data*) to the master.
2) The master receives the data and sends back an acknowledgment signal to the satellite.
3) The satellite sends the updated data to the back-up master.
4) The back-up master receives the data and sends back an acknowledgment signal to the satellite.
*Only for the centralized clerk file system
If the master breaks down, the back-up master serves as the master after a master declaration is made at
the back-up master. If the back-up master breaks down, updated data transmission to it can be stopped by
a master declaration at the master. When the master or back-up master recovers from the breakdown, it
resumes its function as the master or back-up master by the recovery declaring operation.
the back-up master. If the back-up master breaks down, updated data transmission to it can be stopped by
a master declaration at the master. When the master or back-up master recovers from the breakdown, it
resumes its function as the master or back-up master by the recovery declaring operation.
1) Updated data
3) Updated data
2) Acknowledgment signal
4) Acknowledgment signal
Satellite
Back-up master
Master
1. How the IRC back-up system works
50
When the master or back-up master breaks down, the master declaration procedure should be taken to
inform satellites of the breakdown.
inform satellites of the breakdown.
(1) When the master breaks down – Master declaration at the back-up master
Flow of a master declaration at the back-up master
1) A satellite detects a breakdown of the master through the system retry function when sending
updated GLU data (and clerk data*) to the master. At this point, the message “MASTER DOWN”
appears in the pop-up window of the display of the satellite.
(For the system retry function, see pages 55–56.)
appears in the pop-up window of the display of the satellite.
(For the system retry function, see pages 55–56.)
2) The master declaration operation must be done at the back-up master. This operation informs all
the satellites that the master has broken down and the back-up master will serve as the master
hereafter. (During this process, any other operation cannot be done at each satellite.)
hereafter. (During this process, any other operation cannot be done at each satellite.)
3) Each satellite in the IRC system starts sending updated GLU data (and clerk data*) only to the
back-up master.
4) The back-up master receives the data and sends back an acknowledgment signal to the satellites.
*Only for the centralized clerk file system
The master declaration procedure is as follows:
1.
Enter the PGM2 mode from the mode selection window.
2.
Select “7 DECLARE & RECOVERY MA/BMA” from the displayed menu.
The DECLARE & RECOVERY MA/BMA window will appear.
3.
Select “1 DECLARE MASTER&STOP DB UPDATE.”
While the master is down, the back-up master performs T-LOG polling as well.
NOTE
1) Detection of a breakdown
3) Updated data
Satellite
4) Acknowledgment signal
(Transmission stops.)
Master declaration
Back-up master
Master
2) Master
declaration
operation
declaration
operation
2. Master declaration
51
(2) When the back-up master breaks down – Master declaration at the master
Flow of a master declaration at the master
1) A satellite detects a breakdown of the back-up master through the system retry function when
sending updated GLU data (and clerk data*) to both the master and back-up master. At this point,
the message “BACKUP DOWN” appears in the pop-up window of the display of the satellite.
the message “BACKUP DOWN” appears in the pop-up window of the display of the satellite.
2) The master declaration operation must be done at the master. This operation informs all the
satellites of the breakdown of the back-up master.
3) Each satellite in the IRC system starts sending updated GLU data (and clerk data*) only to the
master.
4) The master receives the data and sends back an acknowledgment signal to the satellites.
*Only for the centralized clerk file system
The master declaration procedure is the same as “(1) When the master breaks down.”
1) Detection of a back-up master breakdown
3) Updated data
Satellite
4) Acknowledgment signal
(Transmission stops.)
Back-up master
Master
2) Master declaration
Click on the first or last page to see other UP-3500 (serv.man34) service manuals if exist.