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Functionality for All Option Board's Section 7-1
Monitoring Safety I/O Terminal Status
You can monitor the status of the G9SP-series Controller's Safety I/O termi-
nals by using the G9SP-series Controller's Safety I/O Terminal Data Flags,
Safety I/O Terminal Status Flags, and Safety I/O Terminal Error Cause. A
Safety I/O Terminal Data Flag indicates the ON/OFF status of the terminal,
and a Safety I/O Terminal Status Flag indicates whether an error has occurred
at the terminal (OFF when an error has occurred).
When an error has occurred, you can investigate the cause of the error by
using the Safety I/O Terminal Error Cause. For example, the information will
change as follows if an error occurs at Safety Output terminal So0.
Sending Operation Instructions to the G9SP-series Controller
Values can be written from a Standard PLC to the program of a G9SP-series
Controller by using the communications data received by the G9SP-series
Controller. This can be used in applications such as sending operation
instructions to the safety system from a Standard PLC.
Normal Error Occurred
Information
on So0
Value Meaning Information
on So0
Value Meaning
Safety Output
Terminal Data
Flag
1 ON Safety Output
Terminal Data
Flag
0OFF
Safety Output
Ter minal Sta -
tus Flag
1 Normal Safety Output
Terminal Sta-
tus Flag
0 Error
Safety Output
Terminal Error
Cause
0 No error Safety Output
Terminal Error
Cause
3Short cir-
cuit to low
The information that is required to monitor the
G9SP-series Controller is sent as a package.
Standard PLC
Safety Output Terminal Data Flags
Safety Output Terminal Status Flags
Safety Output Terminal Error Causes
Data that can be used in the program in
the G9SP-series Controller is sent.
Standard PLC
Bits are specified for input tags that are
used in the program.
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