Mitsubishi Electric GOT2000 Series Connection Manual page 399

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■2. Precautions when preparing a cable
(1) Cable length
The maximum length of the RS-422 cable differs according to the specifications of the SHARP PLC.
For details, refer to the following manual.
SHARP PLC user's Manual
(2) GOT side connector
For the GOT side connector, refer to the following.
1.4.1 GOT connector specifications
(3) SHARP PLC side connector
Use the connector compatible with the SHARP PLC side module.
For details, refer to the SHARP PLC user's manual.
■3. Connecting terminating resistors
(1) GOT side
(a)
For GT27, GT25(Except GT2505-V), GT23
Set the terminating resistor setting switch of the GOT main unit to "Disable".
(b)
For GT2505-V
Set the terminating resistor selector to "330Ω".
For the procedure to set the terminating resistor, refer to the following.
1.4.3 Terminating resistors of GOT
(2) SHARP PLC side
Connect the terminating resistor on the SHARP PLC side when connecting a GOT to a SHARP PLC.
The PLC CPUs and the modules on the PLC CPU side requiring a terminating resistor are shown below.
(a)
JW-22CU
Turn "ON" the terminating resistor setting switch (SW1) on the back of JW-22CU to validate the terminating
resistor.
(b)
JW-70CUH and JW-100CUH
Connect the pin 6 (terminating resistor) of the communication port connection connector with the pin 13 (RXD)
only at the terminal station to validate the terminating resistor.
(c)
JW-21CM, JW-10CM and ZW-10CM
Turn "ON" the terminator switch (SW7) on the front panel only at the terminal station to validate the terminating
resistor.
9.3 Connection Diagram
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