Owner's manual

Modbus Register Table
I/O
Point
Modbus Holding Register I/O Type
I/O Range
Holding Register Repre-
sentation
Gateway Nodes Min. Max. Min. (Dec.) Max. (Dec.)
1 1 1 + (Node# × 16) Discrete IN 1 0 1 0 1
...
5 5 5 + (Node# × 16) Rate Count (Hz) or Event Count IN (high
word)**
0 65535 0 65535
6 6 6 + (Node# × 16) Event Count IN (low word)** 0 65535 0 65535
7 7 7 + (Node# × 16) Reserved
8 8 8 + (Node# × 16) Device Message
9 9 9 + (Node# × 16) Discrete OUT 1 0 1 0 1
...
13 13 13 + (Node# × 16) Clear Counter 0 1 0 1
14 14 14 + (Node# × 16)
15 15 15 + (Node# × 16) Control Message
16 16 16 + (Node# × 16) Reserved
** DIP switch selectable between rate (default) and event counter. The rate counter uses I/O 5; the event counter uses I/O 5 and 6.
Event Counter Presets (Integrated Battery Models)
The event counter input can be preset from the Node menu system or from a host system using Advanced Control Messages. The LCD
menu system on the Node allows the user to preset event counter values on each available counter input. From the host system, each
device has allocated Node registers 7, 15, and 16 that send preset data to the event counter. When power is applied to the Node, the
counter value is reset to the last saved value. The counter value is saved every hour.
Setting the counter using the preset or clear functions saves the preset value or zeroes in EEPROM.
Host Control Counter Preset
The event counter input is a 32-bit value that can be preset using the parameter control codes 143 (0x8F) and 144 (0x90). Parameter
control code 143 writes the lower half [15:0] of the counter and code 144 writes the upper half [31:16] of the counter.
Defining the Counter Select Mask using the second bit position selects the counter. Set Modbus register 16 to the high or low data value.
Read Modbus register 7 for the transfer acknowledgement.
Node Reg 15 143 or 144 (0x8F or 0x90) Counter Select Mask
Node Reg 16 Low or High Value
Node Reg 7 Acknowledge Code 143 or 144 Acknowledge Counter Select Mask
Example: To preset the counter to the value 20,567,001 (hex 0139 D3D9), follow these steps:
1. Write the upper word to the counter using control code 144 (0x90).
Node Reg 15 0x90 2
Node Reg 16 0139
Node Reg 7 0x90 2
2. Write the lower word to the counter using control code 143 (0x8F).
SureCross DX80 FlexPower Counter Node
P/N 136972 Rev. F www.bannerengineering.com - tel: [phone]