Extend Service Mode (Mode Switch : No. E) - Mitsubishi A1SJ71PB92D User Manual

8. PROGRAMMING
8.2.2
Communication
READY
X1B
Exchange
start end
X00
X100
X14F
Exchange
start end
X00
Communication
trouble detection
X01
X01
Point
(1) Pay attention to the increase of the scan time since it will take at least 3.3ms to process the
(2) If the network configuration allows the power supplies to the A1SJ71PB92D and to the slave

Extend service mode (MODE switch : No. E)

Module
Exchange
READY
Start End
*1
X1D
X00
Y00
Exchange
start
request
Watchdog
Communication Module
timer error READY
READY
X0D
X1D
X1B
Processing program using received data
Transmission data ON/OFF program
Watchdog Communication Module
timer error
READY READY
X1B
X0D
X1D
Trouble detection
signal reset
request
FROM/TO instruction.
It is recommended to perform the FROM/TO instruction for the AJ71PB92D/A1SJ71PB92D
only once in each sequence scan.
station to be on simultaneously, there may be cases in which the slave side is not
completely started at the time the X1B turns on. In this case, consider the time lag for the
slave station to completely start up when estimating the time period from the point the X1B
turns on until the communication start "Y00" turns on.
FROMP H0
K2128
MOV
FROMP H0
K2188
MOV
H0
TOP K0Z1
FROM H0 K0Z0
TO H0 K0Z1
FROMP H0 K2040
RST "Trouble detection signal reset request"
8-3
MELSEC-A
*1: Exchange start request for user
K1
D0 Input start address offset
for 1st station
Z0
D0
K1
D1 Output start address offset
for 1st station
D1 Z1
K5 Initial output data write
K4Y100
Y100
Exchange start
Initial output data write
Exchange start
K5 Data read
K4X100
Y100
Y14F
K4Y100 K5
Data write
K5 Trouble information read
D1000
Y01 Communication trouble
detection signal reset