Option modules
Option modules are identified based on how they are physically connected to the meter’s external I/O bus.
The first connected module, attached directly to the meter, is Module A. The second module, attached to Module A, is Module B. The meter supports up to four external modules:
Option modules are monitored and controlled by the meter’s ION modules. External I/O modules are mapped to the corresponding ION modules:
Option module physical position | ION module mapping |
---|---|
Module A to Module D | Port A to Port D |
Option module terminal connector label | ION module mapping |
---|---|
Analog inputs A1 to A(n) | Analog Input module A1 to A(n) |
Analog outputs Q1 to Q(n) | Analog Output module Q1 to Q(n) |
Digital inputs S1 to S(n) | Digital Input module S1 to S(n) |
Digital/relay outputs R1 to R(n) | Digital Output module R1 to R(n) |