Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 125)

5-15
IM 04L31A01-17E
5
Ladder Communication Protocol
• Read command transmission processing: If M601 is ON, send a command to
lead CH1 to 4.
M601 X27 Y27
113 MOVP H5 D0
MOVP H102 D1
MOVP H5001 D2
MOVP H4 D4
MOVP H0A0D D5
Tx flag 1 Tx end Tx request
D register
First No.
D register
First No.
CPU address
Num. of Tx data
Read/write
Num. of data to be read/
write data
Num. of data to be read/
write data
MOVP H0 D3
Terminator
SWAPP D2
SWAPP D4
Num. of Tx data
TOP H2 H800 D0 K6
SET Y27
Tx request
Tx request
X27
323 RST Y27
Tx end
5.5 Communication Program for MELSEC