Details Of Input Signals - Mitsubishi Electric MELSEC iQ-R Series User Manual

Details of input signals

This section describes the details of the input signals of the temperature control module to the CPU module.
The I/O numbers (X/Y) described in this section are for the case when the start I/O number of the temperature control module
is set to 0.
Module READY flag
This flag turns ON to indicate that the preparation for the temperature control module is completed after the module is
powered OFF and ON or the CPU module is reset and the reset is canceled.
Check that this flag is ON when reading or writing data from/to the buffer memory areas of the temperature control module
from the CPU module.
The following shows a program example. (In the program example shown below, the start I/O number of the temperature
control module has been set to 10.)
Write
instruction
Used as buffer memory read/write interlock.
When a watchdog timer error is detected, this flag turns OFF. The temperature control module stops the temperature control
operation and the transistor output is also turned OFF (The RUN LED turns OFF and the ERR LED turns ON).
■Device No.
The following shows the device number of this input signal.
Signal name
Module READY flag
APPX
156
Appendix 2 I/O Signal
CH1 to CH4
X0