Communications
terminal block
Communications
terminal block
No.1
No.2
No.3
No.4
Communications switch
All pins are
factory-set to OFF.
E5ZE-8
j
-E
E5ZE-8
j
-E
223
RS-422 and RS-485
RS-422
Terminal
Signal name
Symbol
Signal direction
1
Receive data B
RDB
Input
2
Receive data A
RDA
Input
3
Signal ground
SG
---
4
Send data B
SDB
Output
5
Send data A
SDA
Output
Electrical characteristics:
Conforming to EIA RS-422
Synchronization clock:
Internal
Maximum E5ZE Units connectable: 16 (excluding host system)
Transmission length:
500 m max. in total
RS-485
Terminal
Signal name
Symbol
Signal direction
1
Not used
---
---
2
Not used
---
---
3
Signal ground
SG
---
4
Terminal B (+)
B
I/O
5
Terminal A (–)
A
I/O
Electrical characteristics:
Conforming to EIA RS-485
Synchronization clock:
Internal
Maximum E5ZE Units connectable: 16 (excluding host system)
Transmission length:
500 m max. in total
Communications Switch Settings
Setting
RS-422
RS-485
Termination
resistance
Yes
ON
ON
OFF
ON
No
OFF
OFF
OFF
OFF
RS-422
↔
RS-485
OFF
OFF
ON
ON
DISPLAY UNIT E5ZD-SDL
External Connection
10
9
8
7
6
5
4
3
2
1
19
18
17
16
15
‘14
13
12
11
FG
17
16
Source
+
–
Not used
100 to 240 VAC,
50/60 Hz
24 VDC
Not used
Not used
Terminal arrangement
or
