Eastron SDM220Modbus User Manual
Jiaxing Eastron Electronic Instruments Co.,Ltd. Tel: 0086-573-83698881 83698882 Fax: 0086-573-83698883
Address: No.1369 Chengnan Road, Jiaxing, Zhejiang, 314001, China. Web: www.eastron.com.cn Email: sales@eastron.com.cn
Environment
Operating temperature -25℃ to +55℃
Storage and transportation temperature -40℃ to +70℃
Reference temperature 23℃±2℃
Relative humidity 0 to 95%, non-condensing
Altitude up to 2500m
Warm up time 10s
Installation category CAT III
Mechanical Environment M1
Electromagnetic environment E2
Degree of pollution 2
Output
Pulse Output
The meter provides two pulse outputs. Both pulse outputs are passive type.
Pulse output 1 is configurable. The pulse output can be set to generate pulses to represent total / import/export
kWh or kVarh.
The pulse constant can be set to generate 1 pulse per: 0.001(default) /0.01/0.1/1kWh/kVarh.
Pulse width: 200/100/60ms
Pulse output 2 is non-configurable. It is fixed up with total kwh. The constant is 1000imp/kWh.
RS485 output for Modbus RTU
The meter provides a RS485 port for remote communication. Modbus RTU is the protocol applied. For Modbus
RTU, the following RS485 communication parameters can be configured from the Set-up menu.
Baud rate: 1200, 2400, 4800, 9600
Parity: NONE/EVEN/ODD
Stop bits: 1 or 2
Modbus Address: 1 to 247
Mechanics
Din rail dimensions 36x92x65 (WxHxD) DIN 43880
Mounting DIN rail 35mm
Sealing IP51 (indoor)
Material self-extinguishing UL94V-0
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