YOKOGAWA UTAdvanced Series, User Manual

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IM 05P07A01-01EN
1.5 Coordinated Communication (for UTAdvanced
with RS-485 Communication)
Coordinated operation is a function in which a UTAdvanced controller is used as the
master controller, and a number of the UTAdvanced controllers are connected to
each other as slave controllers and operated according to the operation of the master
controller.
1.5.1 Communication Specifications
RS-485 Communication Interface Specification
Communication specifications
Communication interface RS-485
Communication method 4-wire type half-duplex or 2-wire type half-duplex,
asynchronous operation, non-procedural
Connection method 1:n multi-drop method (n = max. 31)
Connection distance Max. 1200 m
Baud rate 600, 1200, 2400, 4800, 9600, 19200, 38400 bps *
*: 38400 bps: UT75A/UT55A/UT35A/UP55A/UP35A;
Only of suffix code Type 3 = 1
UT52A/UT32A; Only of suffix code Type 2 = 1
Sart bit 1 bit
Data length 7, 8 bits
Parity bit NONE (none), EVEN (even), ODD (odd)
Stop bit 1, 2 bits
Connection Specifications
Communication sSpecifications
Maximum number of devices
available for connection
32
Data transmitting device 1
Data receiving device 31
Transmitted data update
period
200 ms
Example:
Master
Slave Slave Slave Slave
For details on wiring, refer to Operation Guide or
User’s Manual.
Up to 31 connected slaves with a maximum length of 1200 m