Remote Password; Execution Procedure - Mitsubishi Electric MELSEC IQ-R series Reference Manual

11.3

Remote Password

This section explains the commands that unlock or lock the remote password.
For details on the remote password, refer to the manuals of access target CPU or CPU module.
The command can only be used for C24 (including multidrop connection station) and E71 connected to the
external device. It cannot be used via network.
For the modem connection, access route must be set as the same route as that of the connected station (host
station).
(Page 45 ACCESS ROUTE SETTINGS)

Execution procedure

The communication with the module in which the remote password is set, follow the procedure shown below.
1.
Line connection by modem (C24)/open processing for connection (E71)
2.
Access permission (unlock processing) (Page 181 Unlock (command: 1630))
3.
Access processing
Perform data communication by various commands of MC protocol.
4.
Access prohibition (lock processing) (Page 183 Lock (command: 1631))
For C24 or TCP/IP communication of E71, the lock processing is performed automatically at modem disconnection/close
processing.
5.
Line disconnection/close processing of connection
All the commands received when the remote password is locked will be an error response. Perform data
communication after the unlock processing.
11 CONTROL MODULE OPERATION
180
11.3 Remote Password