Watlow CLS200, MLS300 and CAS200 - Manual (Page 40)

34 Communications Specification
Chapter 2: Modbus-RTU Protocol
The storage requirements for some parameters depend on the number of
digital inputs or digital outputs to the controller (MAX_DIGIN and
MAX_DIGOUT). The storage of ramp-soak profile parameters depend
on the number of profiles (MAX_RSP), the number of segments per
profile (MAX_SEG), the number of triggers per segment
(MAX_TRIG), and the number of events per segment (MAX_EVENT).
The table below shows the values for each of these factors. Use them to
calculate the number of registers for each parameter.
NOTE
Data table parameters 46 to 60, 100 and 103 are ramp-soak
parameters. They are only used in controllers with the
ramp-soak option. Parameters 81 to 95 are enhanced fea-
tures and are only available in controllers with the
enhanced features option.
Ordering of Heat and Cool Channel Parameters
For parameters that have both heat and cool settings, the heat values are
stored in the first registers and the cool values are stored in the registers
starting at the listed address plus MAX_CH.
Ordering of Ramp-Soak Profile Parameters
Ramp-soak profile parameters are ordered first by profile, then by
segment where applicable. So, for example, the first 35 registers of the
Ready Events parameter are the ready segment event states for the first
profile (profile A), the next 35 registers are for profile B, and so on. In
the case of the segment triggers, the first register contains the first
trigger setting for the first segment of profile A, the second register
contains the settings for the second trigger for the first segment of
profile A, the third register contains the settings for the first trigger for
the second segment of profile A, and so on.
MAX_CH:
4CLS/CLS204 (4 loops + 1 pulse loop)
8CLS/CLS208 (8 loops + 1 pulse loop)
16CLS/CLS216/CAS200 (16 loops + 1 pulse loop)
16MLS/MLS316 (16 loops + 1 pulse loop)
32MLS/MLS332 (32 loops + 1 pulse loop
5
9
17
17
33
MAX_DIGIN 8
MAX_DIGOUT 35
MAX_RSP 17
MAX_SEG 20
MAX_TRIG 2
MAX_EVENT 4