YOKOGAWA UT55A - Peer-To Peer Communication Wiring

17-30
IM 05P01C31-01EN
17.4.14 Peer-to peer Communication Wiring
Peer-to-peercommunicationcanbeusedonladderprogramofUT55A/UT52A.
2-wire Wiring of 4-wire Terminal (for UT55A only)
UT
SDB (+)
SDA (–)
RDB (+)
RDA (–)
SG
SDB (+)
SDA (–)
RDB (+)
RDA (–)
SG
SDB (+)
SDA (–)
RDB (+)
RDA (–)
SG
UT UT
Communication
cable
Class D grounding
(grounding resistance
of 100 Ω or less)
Communication
cable
Class D grounding
(grounding resistance
of 100 Ω or less)
(External)
Terminating resistor
220 Ω 1/4 W
(External)
Terminating resistor
220 Ω 1/4 W
UT55A/UT52A
Terminal
symbol
above
(For Standard model)
UT55A Sufx code: Type 3
= 1; however, Type 2 = 1 or
6 excluded
(For Detailed model) UT55A
Optional sufx code: /CH3
(For Standard model) UT55A
Sufx code: Type 2 = 1 or 2;
however, without optional
sufx code /LP
(For Detailed model) UT55A
Optional sufx code: /C4
(For Detailed model)
UT52A Optional sufx
code: /CH1
RDB(+) 410 504 304
RDA(–) 411 505 305
SDB(+) 407 501 301
SDA
(–) 408 502 302
SG 409 503 303
17.4 Wiring