GE EPM 9650/9800 Customizable Modbus Map Format Block, Line Number 2 bytes Point Number 1 byte

•TCP Ending Valid Client Ports - Four 2 byte unsigned integers. These are Ending Client port for validating TCP connections.

•UDP Starting Valid Client Ports - Four 2 byte unsigned integers. These are Starting Client ports for validating UDP datagrams.

•UDP Ending Valid Client Ports - Four 2 byte unsigned integers. These are Ending Client ports for validating UDP datagrams

•Multicast Group Address - Reserved for future use.

•UDP Respond Port - 2 byte unsigned integer. This is UDP port to respond to if UDP response behavior is

7.49: Customizable Modbus Map Format Block (51201-51712)

Using this block, you can customize up to 256 readings. All the readings that are customized in this block can be seen in the Customized Modbus Map Window Block (12289).

•Line Number - 2 bytes.

•Point Number - 1 byte.

•Reserved - 1 byte. Currently not used.

You can select any Register or Group of Registers that has a Line Number and a Point Number from the EPM Modbus Register Map. Those selections are used to create a customized grid of up to 256 readings in the EPM Communicator Device Profile.

Example: In order to read 1 Cycle Phase A-N Voltage as Item Number 1 on your Customized

Modbus Map, you would enter for Item 1: Line Number 10 and Point Number 0.

Refer to GE Communicator User’s Manual for details on the creation of your Customized Modbus Map.

7.50: Energy Scale Settings (51713-51738)

Each register contains 2 bytes. Each byte contains settings for a base quantity. The format of a byte is as follows:

Bit	7	6	5	4	3	2	1	0
Meaning		Digits			Unit		Decimal Places

Digits is a 3 bit field, which is offset by 2 to represent from 2 to 9 displayable digits.

Unit is a 2-bit field, where the values from 0 to 2 represent units of Wh (100), k (103) and M (106). The value 3 is undefined and is treated the same as 2, signifying M (106).

Decimal Places is a 3-bit field, which represent from 0 to 7 decimal places.

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