6. Series 8 I/O
Configuration
6.6. Defining Channel blocks
R500
Series 8 I/O User's Guide
171
April 2017
Honeywell
Table 39 Mode parameter - channel block
Operating mode
Description
Manual (Man)
Provides direct control over the output value of the channel,
regardless of any continuous control strategy.
Cascade (Cas)
Data point receives its output value from a primary data point.
The MODEATTR (mode attribute) parameter determines who has authority to change
certain parameters on the function block.
The following modes apply to the MODEATTR parameter.
Table 40 Mode Attribute parameter - channel block
Operating mode
Description
Operator
Operator supplies the output value and mode for the channel
(operator access level).
Program
Program supplies the output value and mode for the channel
(program access level).
Defining load attributes
When defining the load attributes, the channel block copies:
the Normal Mode parameter (NMODE) into the MODE parameter, and
the Normal Mode attribute (NMODATTR) into the MODEATTR parameter
Considerations
:
Possible entries for the NMODE parameter:
Man
Cas
None
Possible entries for the NMODATTR parameter
Operator
Program
None
To define the channel block and copy the NMODE (normal mode) and NMODATTR
attributes, perform the following steps.