9 CC-LINK CONNECTION (REMOTE DEVICE STATION)
9.2.2 I/O signals to the master module
CC-LINK CONNEC- TION (REMOTE DEVICE STATION)
10
CC-LINK CONNECTION (VIA G4)
11
ETHERNET CONNECTION
12
OMRON PLC CONNECTION
13
YASKAWA PLC CONNECTION
14
ALLEN-BRADLEY PLC CONNECTION
15
SHARP PLC CONNECTION
16
TOSHIBA PLC CONNECTION
9.2.2 I/O signals to the master module
(1) List of I/O signals
The I/O signal allocation is shown below.
The I/O signals varies depending on the set number of occupied stations (2 stations or 4 stations).
The "n" in the table indicates the address allocated to the master module by the station number setting.
(a) When monitoring using the normal monitor method
*1 The remote ready flag turns ON at GOT power-on, at hardware reset, or when the GOT is in an operable state.
If the GOT has been powered on, the flag is OFF during offline operation (OS installation, screen data downloading) or during initial processing execution.
Use this flag in an interlock ladder for write/read performed from the CC-Link master station.
Signal Direction : GOT Master module Signal Direction : Master module GOT Device number
Signal name
Device number
Signal name
Number of occupied stations Number of occupied stations
2 station 4 stations 2 station 4 stations
RXn0 to RX(n+2)F
RXn0 to
RX(n+6)F User area RYn0 to
RY(n+2)F
RYn0 to
RY(n+6)F User area
RX(n+3)0 to RX(n+3)A
RX(n+7)0 to
RX(n+7)A Unusable
RY(n+3)0 to RY(n+3)F
RY(n+7)0 to
RY(n+7)F Unusable
RX(n+3)B RX(n+7)B Remote ready *1
RX(n+3)B to RX(n+3)F
RX(n+7)B to
RX(n+7)F Unusable
9 - 9 9.2 Monitoring Specification
9.2.2 I/O signals to the master module
(b) When monitoring using the dedicated monitor method
*1 The remote ready flag turns ON at GOT power-on, at hardware reset, or when the GOT is in an operable state.
If the GOT has been powered on, the flag is OFF during offline operation (OS installation, screen data downloading) or during initial processing execution.
Use this flag in an interlock ladder for write/read performed from the CC-Link master station.
Signal Direction : GOT Master module Signal Direction : Master module GOT Device number
Signal name
Device number
Signal name
Number of occupied stations Number of occupied stations
2 station 4 stations 2 station 4 stations
RXn0 to RX(n+2)F
RXn0 to
RX(n+6)F User area RYn0 to
RY(n+2)F
RYn0 to
RY(n+6)F User area
RX(n+3)0 RX(n+7)0 GOT complete flag RY(n+3)0 RY(n+7)0 GOT request flag
RX(n+3)1 to RX(n+3)8
RX(n+7)1 to
RX(n+7)8 Unusable
RY(n+3)1 RY(n+7)1 GOT monitor request flag RY(n+3)2 RY(n+7)2 GOT always write request flag RY(n+3)3 to
RY(n+3)8
RY(n+7)3 to
RY(n+7)8 Unusable
RX(n+3)9 RX(n+7)9 Initial data setting complete flag RY(n+3)9 RY(n+7)9 Initial data setting request flag
RX(n+3)A RX(n+7)A Error status flag RY(n+3)A RY(n+7)A Error reset request flag
RX(n+3)B RX(n+7)B Remote ready *1 RY(n+3)B RY(n+7)B
Unusable RX(n+3)C to
RX(n+3)F
RX(n+7)C to
RX(n+7)F Unusable RY(n+3)C to
RY(n+3)F
RY(n+7)C to RY(n+7)F
DANGER
• Do not output the reserved signals among the output signals provided from the master module to the GOT.If any of the reserved signals is output, the PLC system may malfunction.
9.2 Monitoring Specification
9.2.2 I/O signals to the master module 9 - 10
CC-LINK CONNEC- TION (REMOTE DEVICE STATION)
10
CC-LINK CONNECTION (VIA G4)
11
ETHERNET CONNECTION
12
OMRON PLC CONNECTION
13
YASKAWA PLC CONNECTION
14
ALLEN-BRADLEY PLC CONNECTION
15
SHARP PLC CONNECTION
16
TOSHIBA PLC CONNECTION
(2) Details of the I/O signals
The function of each I/O signal is described below
(a) GOT complete flag (RX(n+3)0, RX(n+7)0), and GOT request flag (RY(n+3)0, RY(n+7)0) By turning on the GOT request flag, each command which uses the GOT internal device to monitor (excluding the initial setting command, monitor request command, and always write request command) is executed.
After each command processing is complete, the GOT complete flag turns on.
When the GOT request flag is turned off, the GOT complete flag turns off as well.
(b) Initial data setting complete flag (RX(n+3)9,RX(n+7)9), and initial data setting request flag (RY(n+3),RY(n+7)9)
By turning on the initial data setting request flag, the initial setting command to monitor using the GOT internal device, is executed.
When the initial setting command processing is complete, the initial data setting complete flag turns on.
When the initial data setting request flag is turned off, the initial data setting complete flag turns off as well.
When performing dedicated command monitor, the initial data setting request flag must be turned ON to execute the initial setting command.
Refer to Section 9.2.5 (1) for the initial setting command.
GOT request flag
Command data storage To instruction
Command processing
GOT complete flag Command
ON
ON
Initial data setting request flag
Command data storage To instruction
Command processing
Initial data setting complete flag Initial setting command
ON
ON
9 - 11 9.2 Monitoring Specification
9.2.2 I/O signals to the master module
(c) GOT monitor request flag (RY(n+3)1,RY(n+7)1)
When the GOT monitor request flag is on, the data in the GOT internal device registered for monitoring is always read to the remote register.
Refer to (a) when executing the monitor registration command.
(d) GOT always write request flag (RY(n+3)2,RY(n+7)2)
When the GOT always write request flag is on, the remote device data is always written to the GOT internal device which has been registered for write.
Refer to (a) when executing the always write register command.
(e) Error status flag (RX(n+3)A,RX(n+7)A) and error reset request flag (RY(n+3)A,RY(n+7)A) If an error occurs during execution of a command when communicating with the GOT internal device, the error status flag turns on.
The error status flag is turned off by turning on the error reset request flag.
The error status flag turns ON if the executed dedicated command is wrong or the preset device cannot be monitored (the device is outside the monitor-enabled range).
(f) Remote ready flag (RX(n+3)B,RX(n+7)B) Turns on during the GOT startup.
Turns off during off-line operations (OS installation and screen data download) and initial processing execution.
GOT monitor request flag
Monitor request command ON
Command processing
Processes to always read the data in the GOT internal device specified in the remote register
Command processing Command processing Command processing
GOT always write request flag
GOT write request command ON
Command processing
Processes to always read the remote register data to the specified GOT internal device.
Command processing Command processing Command processing
Error status flag
Error reset request flag
ON
ON
9.2 Monitoring Specification