YOKOGAWA UTAdvanced Series, User Manual

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11-3
IM 05P07A01-01EN
Functions and
Applications of I Relays (for UM33A)
11
CAUTION
• Check the model and suffix codes and parameter settings before writing to or
read from the registers to be used.
• In the area for I relay numbers 4001 to 6560, it is prohibited to write data
to I relays with blank cells in I relay map tables. If you attempt to do so, the
UTAdvanced may not operate properly.
Note
• I relay numbers 4001 to 6560 store ON/OFF status information and are normally read for
ON/OFF status information.

How to Specify I Relay Numbers
When specifying an I relay number for communication, begin the number with the
character “I.”
Example: Set “I4065
”
to specify the ADERR (I relay No.: 4065).

I relay symbol
• With regards to some register symbols, the loop number and terminal area are
indicated by adding the underline (_) to the end of the parameter symbols.
Note
Since the UM33A is a single-loop controller, it has no distinction between Loop-1 and Loop-2.
However, the register symbol has "L1" which indicates Loop-1.
oooo
_L1 L1 : Loop numbers
oooo
_E1 E1 : Terminal area (E1)
Example : PVBO_L1 Indicates PVBO.
ADERR_E1 Indicates ADERR in E1-terminal area.
11.2 Classification of I Relays