53U
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-6485-A Rev.15 P. 7 / 8
COMMUNICATION CABLE CONNECTION
R2K-1
T1
T2
T3
T4
53U
T1
T2
T3
T4
T1
T2
T3
T4
53U
CONNECTOR
RS-232-C
RS-485
*
1
*
1
*
1. Internal terminating resistor is used when the device is at the end of a transmission line.
*
2. Install shield cables to all sections and ground them at single point.
*
2
FG
RS-485
SYSTEM CONFIGURATION EXAMPLES
RS-485 (Modbus RTU)
Multi Power Monitor
(model: 53U)
RS-232-C
RS-232-C/RS-485
Converter
(model: R2K-1 or LK1)
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R)
*
1
AX
IN
AX
IN
AX
IN
■
RS-485 / RS-232-C
■
RS-485 / ETHERNET
Ethernet
Communication Adaptor
(model: 72EM-M4 or 72EM2-M4)
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R)
*
1
RS-485 (Modbus RTU)
Multi Power Monitor
(model: 53U)
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R)
*
1
AX
IN
AX
IN
AX
IN
Lightning Surge Protector
for RS-485/422
(model: MD74R or MDP-4R)
*
1
*
1. Insert lightning surge protectors recommended in this example if necessary.
ETHERNET
RUN
SEND
FIELD
CNFG
RS-485
