Function List - Mitsubishi Electric MELSEC-Q Series User Manual

3.3

Function List

The following table lists the functions of the master module.
Item
Bit transmission function
Parameter reading function
Parameter writing function
Automatic address detection function
Transmission cable short detection
function
Disconnected transmission cable
location detection function
Transmission cable voltage drop
detection function
Parameter access error detection
function
Same ID used detection function
Module with no ID setting detection
function
Backup/restoring function
32
Performs input and output of up to 512 points (256 input points and 256
output points) between the master module and the slave module.
Reads the parameters of a slave module connected to the master module
without delaying the AnyWireASLINK bit transmission.
Writes the parameters of a slave module connected to the master module
without delaying the AnyWireASLINK bit transmission.
The master module detects or stores the ID (address) of the connected
slave module when the SET switch on the front of the master module is
pressed. (Alternatively a specific bit can be used.)
Detects a short in DP-DN cables.
Detects the location of DP-DN cable disconnection.
Monitors a voltage drop in the 24VDC external power supply.
Detects an error upon reading or writing of the setting values of the slave
module.
Checks whether the same ID is used for multiple slave modules. The
LEDs of the relevant slave modules are forcibly turned on.
Detects slave modules with no ID assigned (default ID).
Backs up various information of the connected slave module into the SD
memory card of the CPU module.
Restores the information backed up on the SD memory card of the CPU
module into the connected slave module.
Description Reference item
Page 62, Section 8.1
Page 69, Section 8.8
Page 69, Section 8.8
Page 57, Section 7.3
Page 62, Section 8.2
Page 63, Section 8.3
Page 64, Section 8.4
Page 65, Section 8.5
Page 67, Section 8.6
Page 68, Section 8.7
Page 74, Section 8.9