About the 3020-EDI-32
3020-EDI-32 is a PowerLogic Enercept Display Interface that is manufactured by Square D. The AC/DC voltage is 9-24V. There are two up arrows and two down arrows on this interface. Up to 32 meters (63 with a repeater) are supported on this display interface. The EDI can act as a network adapter allowing Enercept meters to be incorporated into a 4-wire network. This display and the associated meters work with the following applications: data for motor sizing, power equipment planning, motor maintenance trending, motor control center monitoring, real-time power monitoring, activity-based costing in commercial and industrial facilities, submetering for commercial tenants, and energy management and performance contracting.
The 3020-EDI-32 is an Enercept Display Interface module produced by Schneider Electric from their Square D Power Logic line. It is designed to tie into a 4-wire PowerLogic String. The 3020-EDI-32 is wired for AC or DC current, 9-24V. On the back panel of the 3020-EDI-32 it has 3 ports labeled thusly: S, -, +, and five ports labeled in line: IN+, IN-, OUT+, OUT-, S.
As noted above, the Enercept-EDI-32 allows for meter configurations with 4-wire strings. However, there are address limitations for mixed mode strings where PowerLogic and Modbus protocols are on the same string. It is worth noting two devices on the same network cannot have the same address and addresses 0 and 1 are off-limits for the Modbus protocol devices.
The 3020-EDI-32 can have an offset address. Valid offsets include 0, 64, 128, and 192. Enercept address 1 through 15 with an EDI address offset of 0 will have an apparent Modbus Address of 1 through 15. Enercept address 17 through 63 with an EDI address offset of 0 will have an apparent Modbus address of 17 through 63. Enercept address of 1 through 63 with an EDI address offset of 64 will have an apparent Modbus address of 65 through 127. An Enercept address of 1 through 63 with an EDI address offset of 128 will have an apparent Modbus address of 129 through 191. An Enercept address of 1 through 61 with an EDI address offset of 192 will have an apparent Modbus address of 193 through 253. By using these offsets it is possible to have up to four Enercept meters with the same address that are still uniquely identifiable by the master device. Multiple devices can be strung together reporting back to one master device.
