Watlow EZ-ZONE RMC - Manual (Page 171)

Watlow EZ-ZONE ® RMC Module • 168 • Chapter 7 Features
through the text below which defines the column
headers used.
Assembly Definition Addresses
- Fixed addresses used to define the parameter
that will be stored in the "Working Addresses",
which may also be referred to as a pointer. The
value stored in these addresses will reflect (point
to) the Modbus address of a parameter within the
RM control.
Assembly Working Addresses
- Fixed addresses directly related to their associ-
ated "Assembly Definition Addresses" (i.e., As-
sembly Working Addresses 200 & 201 will as-
sume the parameter pointed to by Assembly Defi-
nition Addresses 40 & 41).
When the Modbus address of a target parameter is
stored in an "Assembly Definition Address" its cor-
responding working address will return that parame-
ter’s actual value. If it’s a writable parameter, writing
to its working register will change the parameter’s
actual value.
As an example, Modbus registers 726 and 727
contain the Limit 1 High Set Point (See Operations
Page, Limit Menu). If the value 726 and 727 is loaded
into Assembly Definition Address 110 and 111 respec-
tively (by default these registers are configured as
Alarm 8 State), the Limit 1 High Set Point will now
be stored in Modbus registers 270 and 271.
The table (See Appendix: Modbus Programmable
Memory Blocks) identified as "Assembly Definition
Addresses and Assembly Working Addresses" reflects
the assemblies and their associated addresses.