Mitsubishi MELSEC-A A1SHCPU User Manual

51
(13) Mode setting switch
(14) Computer link LED
Mode settings (factory setting: 0)
Mode Setting Switch Number Setting
0 Unusable
1 Protocol 1
2 Protocol 2
3 Protocol 3
4 Protocol 4
5 No-protocol or printer function
6 to E Unusable
F
Used for testing the independent
module
LED No. Description
0 RUN
Normal run
Normal: ON
Error: OFF
1SD
Transmitting
Flashes during data transmission
2RD
Receiving
Flashes during data receive
3CPU
Communications with programmable controller
CPU
Flashes during communications with
programmable controller CPU
4NEU
Neutral
Transmission sequence initial state (waiting for
ENQ): ON
ENQ received: OFF
5ACK
ACK
After sending ACK: ON
After sending NAK: OFF
6NAK
NAK
After sending NAK: ON
After sending ACK: OFF
7C/N
Result of programmable controller CPU
communications
Error: ON
Normal: OFF
8P/S
Parity/Sum check error
Error: ON
Normal: OFF
9PRO
Protocol error
Communications protocol error: ON
Normal: OFF
10 SIO
SIO error
Normal: OFF
5
D
6
E
7
F
8
0
9
1
B
3
C
4
MODE
2
A
10
9
8
7
6
5
4
3
2
1
0

Mitsubishi MELSEC-A A1SHCPU Specifications

General

Brand	Mitsubishi
Model	MELSEC-A A1SHCPU
Category	Controller
Language	English