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6-2-11 Communications Writing
Writing can be enabled and disabled from the PLC (or, for component communications, from the E5@D
master). The Communications Writing parameter is normally left ON (enabled). However, if it is neces-
sary to change set values from the display section of the E5@D in an emergency, temporarily change
the setting to OFF (disabled). If you disable communications when writing is being performed from the
PLC, an error will occur in the PLC. (An error code will be set in the Response Flag in PLC memory.) If
you cycle the power supply to the E5@D or move to the initial setting level and then go back to the oper-
ation level, the Communications Writing parameter will automatically change to ON.
6-2-12 Communications Monitor Parameter
This parameter displays the communications cycle time of the E5@D. If communications with the PLC
are not possible, c.err is displayed and then the cycle time is displayed again when communications
are restored.
E5CD
E5CD
No.0
No.1
Cycle time of E5CD with communications unit number 0
Adjustment Level
Display condition: The Protocol Setting parameter must be set to fins, mcp4, or fxp4.
Parameter name
Communications
Monitor
Note: If this parameter is monitored in PLC memory, the cycle time is given as 0 to FFFF hex (0 to 65,535
decimal). If an error occurs, PLC memory is not updated.
E5@D Digital Temperature Controllers Communications Manual (H225)
PLC
E5CD
E5CD
No.2
No.0
Displayed
characters
Normal operation: 0 to 9999 ms. If 9,999 ms is exceeded,
plcm
]]]] is displayed.
Error: c.err
6 Programless Communications
Order of
communications
Monitor range*
6
Default
---
6 - 17
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