Watlow SpecView from Watlow - Manual (Page 14)

SpecView from Watlow  14  Watlow Addendum
Register Addresses and Offsets for EZ-ZONE RML Modules
Instrument Instances
First
Instance
Address
Instance
Offset
EZ-ZONE Alarms 1 to 16 2530 60
EZ-ZONE Analog Input 1 to 12 410 90
EZ-ZONE Communications 1 3500 N/A
EZ-ZONE Digital I/O 1 to 12 1850 30
EZ-ZONE Limit 1 to 12 1490 30
Register Addresses and Offsets for EZ-ZONE RMS Modules
Instrument Instances
First
Instance
Address
Instance
Offset
EZ-ZONE Alarms 1 to 16 2500 60
EZ-ZONE Analog Input 1 to 16 380 90
EZ-ZONE Communications 1 3470 N/A
EZ-ZONE Digital I/O 1 to 12 1820 30
Address String Example 1: Analog Input 1 in an EZ-ZONE ST via Modbus RTU
If an EZ-ZONE ST will communicate with SpecView directly (no gateway) via Modbus RTU, the First
Instance Address for an EZ-ZONE Analog Input instrument that will read the value of analog input 1 is
360. If its Modbus address on the 485 network is 2, then the address string for the EZ-ZONE Analog
Input instrument could be simply “2;360”. If you want to display the analog input value with tenths
precision then make it, “2,1;360”.
Note that we must use data map 2 because data map 1 is not supported by SpecView for EZ-ZONE STs
without a gateway.
Address String Example 2: Analog Input 2 in an EZ-ZONE ST via Modbus RTU
For the same network as Example 1 the address string for an EZ-ZONE Analog Input instrument
supporting analog input 2 in the EZ-ZONE ST, the address string is “2,1;450” The register address
offset is 450 because that’s the address for the first analog input plus the offset 90 to reach the second
input.
Address String Example 3: EZ-ZONE PM Controllers via an EZ-ZONE RUI Gateway with
Modbus TCP
Consider three EZ-ZONE PM controllers configured for data map 2 and connected to an EZ-ZONE RUI
Gateway with the local/remote gateway offsets set to 0, 4000 and 8000 respectively. To determine the
register address offset for an EZ-ZONE Set Points instrument to support the second control loop in the
third EZ-ZONE PM, locate the First Instance Address and the Instance Offset. These are 2640 and 80
respectively. Add these together for control loop instance 2 and add the gateway offset for the third
controller: 2640 + 80 + 8000 = 10720. So the register address offset is 10720.
If the Gateway’s IP address is 10.3.37.105, then the address string is, “10.3.37.105,1,2;10720” where the
comma one (,1) after the IP address is the Modbus address of the gateway and the comma two (,2) after
that specifies that values be displayed in hundredths where applicable.
EZ-ZONE Modbus Profile Instruments
The instruments supporting programming profiles include 10 steps each. Therefore, the instance offsets
indicated above are ten times the instance offsets indicated for the steps in the controller manuals.