SMC Networks LECSB2-T Series - Page 483

14. COMMUNICATION FUNCTION
14 - 29
(5) Reading output device status
The following shows how to read the on/off status of the output devices.
(a) Transmission
Transmit command [1] [2] and data No. [8] [0].
Command
Data No.
[1] [2]
[8] [0]
(b) Return
The slave station returns the status of the input/output devices.
b31 b1b0
1: On
0: Off
Command of each bit is transmitted to the master station as hexadecimal data.
Bit
Symbol
Bit
Symbol
Bit
Symbol
Bit
Symbol
0
RD
8
ALM
16
24
1
SA
9
OP
17
25
CDPS
2
ZSP
10
MBR
18
26
CLDS
3
TLC
11
DB
19
27
ABSV
4
VLC
12
ACD0
20
28
5
INP
13
ACD1
21
29
6
14
ACD2
22
30
7
WNG
15
BWNG
23
31
MTTR