Doc# E107706 9- 17
Electro Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
9: External I/O Modules
9.9: Digital Status Input Module
9.9.1: Overview
The Digital Status Input Module is used either for additional status detect or for accu-
mulating pulses from external equipment, such as power meters, water meters, etc.
The Nexus® 1250/1252 meter supplies power for up to 4 connected Digital Status
Input modules. See Section 9.2 for power and communication details. Refer to
Section 5.6.2 to determine if you must use an additional power source, such as EIG’s
PSIO.
Digital Status Input Module Specifications
Model Number 8DI1
Communication RS485, Modbus RTU
Programmable Baud Rates: 4800, 9600, 19200,
38400, 57600
Power Requirement 12-20VDC @50-200mA; 1250/1252 supports up to
four modules
Operating Temperature
(-20 to +70)
o
C/(-4 to +158)
o
F
Voltage Rating Up to 300VDC
Detection Wet/Dry, Auto-detect
Memory
256 Byte I
2
C EEPROM for storage of programmable
settings and non-volatile memory
Factory Settings Modbus Address: 164
Baud Rate: 57600
Transmit Delay Time: 0
Default Settings (Reset Button) Modbus Address: 247
Baud Rate: 57600
Transmit Delay Time: 20msec
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