RKC INSTRUMENT Z-TIO-G, Instruction Manual

Page: 48 / 246

5. WIRING
IMS01T28-E4
5-10
 Connection to the USB of the host computer (master)
When the host computer (OS: Windows 98SE or higher) is corresponding to the USB connector, our
communication converter COM-K (sold separately) can be used.
RS-485



SG 5
T/R (A) 3
4
T/R (B)
5
1
SG
3
T/R(B)
2 T/R (A)
4
Unused
SG 5
T/R (A) 3
4
T/R (B)
R
(

)
(

)
(

)
(

)
Z-TIO module
(Slave)
Z-TIO module
(Slave)
SRZ unit
Host computer (Master)
Pair wire
Shielded twisted
pair wire
Connected by
the internal
communication line
USB communication
converter COM-K *
Connected to USB port
of a personal computer
USB cable
(COM-K
accessory)
Connected to
USB connector
R: Termination resistor
(Example: 120

1/2 W)
If communication errors occur frequently due to the operation
environment or the communication distance, connect termination
resistors.
* The termination resistor is built into
the COM-K.
Up to 16 Z-TIO modules can be connected.
The maximum number of SRZ modules (including other function modules) on the same communication line is 31.
For the COM-K, refer to COM-K Instruction Manual (IMR01Z01-E  ) .
The cable and termination resistors must be provided by the customer.
For installation method of termination resistor of the SRZ side, refer to 5.5 Installation of
Termination Resistor (P. 5-11) .