Product introduction
ADM-4586 is a data acquisition module with 8 channel 0~20mA/4-20mA current signal input, 4 channel isolated digital input and 2 channel C type relay output. It is applied to signal acquisition, monitoring and control in industrial area. The current signal is a single end input mode, the digital input is photoelectric isolation, the relay output has normally open / normally close 2 contacts. The communication interface is a RS-485 interface that supports the standard MODBUS RTU protocol and can connect configuration software, PLC, and DCS industrial control touch screen.
Product specification
Analog signal input
1. Input channel: 8 Channel single end
2. Input range: ADM-4586: 0~20mA/4-20mA current signal
3. ADC resolution: 16 Bit(valid-bit 15bit)
4. Conversion rate: 10 times per second (Full channel)
5. Precision: ±0.1%
6. Sampling resistance: 12R /0.1% (Current)
Digital input
1. Input channel: 4 Channel dry contact or level signal
2. Input polarity: co - negative or co - positive (automatic adaptation)
3. Input range: high level (1):7.5V - 30V, low level (0): 0V - 1V
4. Sampling rate: 1000Hz
5. Isolation voltage: 1500V
Digital output
1. Output channel: 2 channel C-type relay
2. Load capacity: DC24V@1A
Communication interface
1. Communication protocol: MODBUS-RTU
2. Interface type: RS-485 interface
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
6. Default: 9600, N, 8, 1 (modifiable)
System parameter
1. Module size: 104mm x 72mm x 26mm
2. Installation: 35mm din rail installation
3. Environment: temperature: -20~70 ℃ humidity: 0-95%, not condensing
4. Power supply: DC9~30V is less than 1W
Indicator light definition
1. POWER: power indication, "bright" power supply is normal
2. COMM: RS-485 communication indication, "flash" module sends and receives data
3. DI0~DI3: digital input indication, "bright" digital input is 1
4. RO0~RO1: relay output indication, "bright" relay NO and COM closure
Using the default communication parameters
When you forget module communication (ID, baud rate, parity bit), the INIT and VS- pins are short circuited, module electrifying, The communication parameters of the module are (9600, N, 8, 1), ID is 1.INIT and VS- 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
1.30001~30008: analog input register address (3x),
Using 04 function code address 0000H~0007H.
2.40161~40164: module parameter register address (4x),
Using 03 and 06 function code addresses 00A0H~00A3H.
3.10001~10004: digital input register address (1x),
Using the 02 function code address 0000H~0003H.
4.00001~00002: relay output register address (0x),
Using the 01, 05, and 15 function code address 0000H~0001H.
MODBUS-RTU Example of communication format
The following values are 16 HEX
1, Read the 8 channel current input value
Host sending: 01 03 00 00 00 08 44 0C
01 (ID) 03 (Function code) 00 00 (Starting address)
00 08 (Register number) 44 0C (CRC Code)
Module return: 01 03 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 E4 59
01(ID) 03 (Function code) 10 (Total bytes)
E4 59 (CRC Code) 8 Groups 00 00 (Current value)
2, Read the 4 channel digital input value
Host sending: 01 02 00 00 00 04 79 C9
01(ID) 02(Function code) 00 00(Starting address)
00 04(Register number) 79 C9 (CRC Code)
Module return: 01 02 01 00 A1 88
01(ID) 02(Function code) 01(Total bytes) A1 88(CRC Code)
00(The returned digital quantity value, low four bits valid, 0 is no input）
3, Write the output value of the 2 channel relay
Host sending: 01 0F 00 00 00 02 01 03 9E 96
01 (ID) 0F (Function code) 00 00 (Starting address)
00 02 (Register number) 01 (Total bytes) 03(Value) 9E 96 (CRC Code)
Module return: 01 0F 00 00 00 02 D4 0A
01(ID) 0F(Function code) 00 00(Starting address)
00 02(Register number) D4 0A (CRC Code)
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