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DANGER
When a communication error occurs in the PROFIBUS-DP, the statu
faulty station is as follows. Configure an interlock circuit in the sequ
program using the communication status information (input X1, buff
memory 2040 (7F8H) to 2079 (81FH)) so that the system can operate
Erroneous outputs and mis-operation could cause accidents.
(1) The input data of the master station maintains the data before
abnormality of the communication.
(2) When the master station is down, t he output state of each slave
will be in accordance with the parameter settings.
(3) When any slave station is down, the output state of other slave s
will be in accordance with the parameter settings of the master s
Do not output the "prohibited to us e" signal as the output signal to a
intelligent function module from the programmable controller CPU.
Writing data into the "system area" or outputting a signal for "prohib
use" may cause system malfunction in the programmable controller