Data Registers - Mitsubishi Electric MELSEC FX Series User Manual

FX communication
4.1.2

Data Registers

Attribute
R
R
R
W
W
W
W/R
W/R
R
R
R
D204 to
R
D210 *2
R
D212 to
R
D218 *2
D219 to

R : Read only
*1 The number of communication errors occurred in its own station cannot be counted in the
CPU error status, the program error status or the stop status.
*2 Number (Same meaning but looks better.) in accordance with the slave station No.
Slave station No.1 is D204, D212, slave station No.2 is D205, D213,
... slave station No.7 is D210, D218.
*3 Number (Same meaning but looks better.) in accordance with the slave station No.
Slave station No.1 is D8204, D8212, slave station No.2 is D8205, D8213,
... slave station No.7 is D8210, D8218.
Note;
• Devices M503-M511 and D201-D255 in the FX
program. These devices are used by the N:N network.
Data Registers
FX , FX , FX ,
0N 1N 2N
FX FX
1S 2NC
D8173
D8174
D8175
D8176
D8177
D8178
D8179
D8180
D201 D8201
D202 D8202
D203 D8203
D8204 to
D8210 *3
D211 D8211
D8212 to
D8218 *3

D255
W : Write only M : Master station
Name
Station No.
Total number of slave
stations
Refresh range
Station number setting
Total slave station number
setting
Refresh range setting
Retry count setting
Comms time-out setting
Current network scan time
Maximum network scan
time
Number of communication
error at master station
Number of communication
error at slave station
Code of communication
error at master station
Code of communication
error at slave station
Not used
L : Slave station
Description
Saves its own station No. M, L
Saves total number of
slave stations
Saves refresh range
Sets its own station No.
Sets total number of
slave stations
Sets refresh range
Sets retry count
Sets comms time-out
Saves current network
scan time
Saves maximum network
scan time
Number of
communication error at
master station *1
Number of
communication error at
slave station *1
Code of communication
error at master station *1
Code of communication
error at slave station *1
For internal processing
and FX cannot be used in the
0N 1S
N:N network 4
Response
type
M, L
M, L
M, L
M
M
M
M
M, L
M, L
L
M, L
L
M, L

4-2