Test Of Bit Device (Bt Command) - Mitsubishi Electric MELSEC FX Series User Manual

FX communication
8.5

Test of Bit Device (BT command)

1 ) Command specification
Protocol format 1 is shown
Computer
Programmable
controller
Notes
• Specify the range and number of devices so as to satisfy the following condition.
- 1
• The station number, PC (PLC) number, number of devices, and sum check code are
expressed in hexadecimal.
2 ) Specification example
To set ON M50, OFF S100, and ON Y001 at station No.5 (with message wait time set to 0
ms).
Computer
Programmable
controller
Test command
(selective write,bits)
≤
number of devices
The sum check is calculated over this range
E
N 0 5 F F B T 0 0 3
Q
30H 35H 46H 46H 42H 54H 30H 30H
05H
Character area C
Number of Device
devices
(2 characters, (5 characters)
hexadecimal)
1 character
"0" (30H) indicates reset (OFF)
"1" (31H) indicates set (ON)
≤
20(10 for FX )
0N
M 0 0 5 0 1 S 0 1 0 0 0
33H 4DH 30H 30H 35H 30H 31H 53H 30H
Set (ON)
Device
(5 characters)
Y 0 0 0 1 1
31H 30H 30H 30H 59H 30H 30H 30H 31H 31H
Reset (OFF) Set (ON)
Commands 8
E C
45H 43H
A
C 0 5 F F
K
30H 35H 46H 46H
06H
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