Checking The Cpu When An Error Occurs - Panasonic FP3 Technical Manual

7-1. Checking the CPU When an Error Occurs

7-1. Checking the CPU When an Error
Occurs
If a communication error or an error in the FP3 transmitter master unit occurs, check the LED status for the FP3 transmitter
master unit and the FP I/O transmitter unit.
See pages 91 to 98 and 103 to 107 for details about the operation monitor LED status when an error occurs.
When a communication error occurs, the CPU of the FP3/FP10S detects the error using a self-diagnostic function.
J Checking method
1) The operation monitor LEDs of the CPU show the following LED status.
RUN
PROG.
TEST
BREAK
ERROR
BATT.
ALARM
2) With the FP3 CPU, special internal relay R9002 turns ON.
3) Self-diagnostic error code "E40" can be read by the NPST-GR software and FP programmer II.
Error code "E40" is stored in special data register DT9000 for the FP3, and in special data register DT90000 for
the FP10S.
See the "FP3/FP10S HARDWARE Technical Manual" for details about the special data registers and self-diagnostic
error codes.
4) The slot No. of the FP3 transmitter master unit that is generating an error can be checked with special data registers
DT9002 and DT9003.
Example:
When an error is generated in the FP3 transmitter master unit mounted in slot No. 3 of the master backplane.
Special data registers: DT9003, DT9002
Slot number 15 · · 12
Bit position 15 · · 12
DT9003 0 0 0 0
90
RUN LED: ON
ERROR LED: ON
Other LEDs: OFF
11 · · 8 7 · · 4 3 · ·
11 · · 8 7 · · 4 3 · ·
0 0 0 0 0 0 0 0 0 0 0 0
0 Slot number 15 · ·
0 Bit position 15 · ·
DT9002 0 0 0 0
12 11 · · 8 7 · · 4 3
12 11 · · 8 7 · · 4 3
0 0 0 0 0 0 0 0 1 0 0 0
· · 0
· · 0