4. WIRING
IMR01Y36-E2
17
4.4 Wiring to the Controllers
Conduct wiring between the COM-JH and controller (SRZ) as shown in the following.
SRZ (Z-TIO/Z-DIO module) communication terminal number and signal details
Terminal No.
Signal name
Symbol
3
Send/receive data
T/R (A)
4
Send/receive data
T/R (B)
5 Signal
ground
SG
Wiring
Paired
wire
Shielded twisted
pair wire
Controller (SRZ)
Terminal block
RS-485
R2
R1: Internal termination resistor (120
Ω
1/2 W)
3
4
5 SG
COM-JH
SG
1
5
4
R1
T/R (A)
T/R (B)
3
4
5 SG
T/R (B)
T/R (A)
T/R (B)
T/R (A)
Z-TIO module
Z-TIO module
R2: Termination resistor for external connection
(Example: 120
Ω
1/2 W)
The maximum number of SRZ modules (including other
function modules) on the same communication line is 31.
Up to 16 Z-TIO modules can be connected.
Connected by
the internal
communication
line
(
−
)
(
+
)
(
−
)
(
+
)
(
−
)
(
+
)
If communication errors occur frequently due to the operation environment or the
communication distance, connect termination resistors.
The customer provides the cable and termination resistor for external connection.
The termination resistor existing within the COM-JH can be connected or disconnected by
the switch. (Factory set value: Termination resistor connected)
[Refer to
4.5 Termination Resistor (P. 18)
]
3 4 5
2
1
Communication
terminal number
