Data Communication Procedure - Mitsubishi Electric QJ71E71-100 User Manual

9.3

Data Communication Procedure

The following is a data communication procedure for MC protocol communications.
1.
Set the parameters. (
2.
Perform the open process and establish a connection between the E71 and the connected device.
( Page 88, Section 7.2, Page 96, Section 7.3)
3.
Once the connection is established, the connected device sends an MC protocol message.
4.
The connection is closed after the communications are completed.
In the cases described below, an E71 performs a remote password check when the connected device accesses the
programmable controller. If communications cannot be performed, unlock the remote password. (
14.4.2)
• When a remote password has been set in the CPU module
• When the connection for data communications with the connected device is to be subjected to the remote
password check
104
Page 105, Section 9.4)
Page 201, Section