Introduction
ADM-4204 is 4-Channels 0~20mA/4~20mA/0~10V/0~5V analog signal output module. The communication interface adopts RS-485 interface, supports standard Modbus-RTU protocol, and can be directly connected with configuration software, PLC, DCS, industrial control touch screen, etc.
Specification
Analog output
1. Output channel
：4 Channel single end
2. Output range
： ADM-4204C
：0~20mA/4~20mA
ADM-4204V
：0~5V/0~10V
3. Resolution
：12Bit DAC Chip
4. Conversion Accuracy
：Current output accuracy ± 0.2%, Voltage output accuracy ± 0.3%
5. Temperature drift
：±25ppm/℃
Communication interface
1. Communication protocol: Modbus-RTU
2. Interface type: RS-485 interface (Default: 9600, N, 8, 1 modifiable)
3. Interface protection: 15KV ESD protection, 1500V isolation protection
4. Baud rate: 1200/2400/4800/9600/19200/38400/57600/115200
5. Parity
：No, Even, Odd
System parameter
1. Watchdog
：Dual watchdog, Software watchdog and Communication watchdog
2. Power supply：DC9~30V, with Power Reverse Connection Protection
3. Power dissipation
：Less than 2W @ 24VDC
4. Working temperature
：-10℃~ +60℃
5. Storage temperature
：-40℃~ +85℃
Indicator light definition
1. POWER
：power indication, "bright" power supply is normal
2. COMM
：RS-485 communication indicates that "flash" sends and receives data
Using the default communication parameters
When you forget module communication (ID, baud rate, parity bit), the INIT and GND pins are short circuited, module electrifying, The communication parameters of the module are (9600, N, 8, 1), ID is 1.INIT and GND pin is disconnected, module using parameters set by the user, default parameters for the module (9600, N, 8, 1), ID is 1.
Module register address description
40001~40004 (4x Area) 3, 6, 16 (Function Code) 0x0000~ 0x0003
40161~40163 (4x Area) 3, 6 (Function Code) 0x00A0~ 0x00A2
Model Description
ADM-4204C
：4AO(0~20mA/4~20mA)
ADM-4204V
：4AO(0~5V/0~10V)
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