DAM-3948DY

DAM-3948DY is an 8-channel signal relay output module with 8-channel relays, including 4-channel C-type relays and 4-channel A-type relays, and it has RS485 communication interface and standard ModbusRTU protocol and ASCII protocol, compatible with Advantech ADAM-4068 protocol. It is equipped with a good human-computer interface, so it is easy to use and its performance is stable.

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Category

Products

Data acquisition module

RS485 acquisition module

Quantity

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Product description

Switch Output
Output Channel	8-channel relays, including 4-channel C-type relays and 4-channel A-type relays
Contact Material	Ag+Au clad
Rated Control Capacity (Resistive Load) _{Note 1}	2A, 30V DC
Contact Maximum Allowable Current (Resistive Load)	2A
Contact Maximum Switching Voltage (Resistive Load) _{Note 2}	220V DC or 220V AC
Minimum Applicable Load (Resistive Load)	10µA 10mV DC
Relay Off Time	4ms (max)
Relay 0n Time	4ms (max)
Mechanical Life	More than 100 million times (on-off frequency 180 times/min)
Electrical Life	More than 100,000 times (under 2A 30V DC resistive load), more than 500,000 times (under 1A 30V DC resistive load) (on-off frequency 20 times/min)
Others
Communication Interface	RS485
Baud Rate	1200~115200bps
Data Communication Rate _{Note 3}	Maximum 180 times/second (single module, under 115200bps) Maximum 24 times/second (single module, under 9600bps) Maximum 3 times/second (single module, under 1200bps)
Watchdog	Dual watchdog
Supply Voltage	Unconditioned +10V～30VDC
Power Protection	Power reverse protection
Power Consumption	Rated 2.4W @ 24VDC
Operating Temperature	-10℃～＋70℃
Storage Temperature	-20℃～＋85℃

Note：

1. Resistive Load: The maximum value of all parameters of the relay is realized when the load is resistive load. Resistive load means the load that iodine tungsten lamp, incandescent lamp, resistance furnace, oven, electric water heater, etc. will not cause voltage and current phase changes.

2. Contact Maximum Switching Voltage: this value is the maximum value when the load is a resistive load, and supports DC and AC voltage. If the load is a capacitive load or an inductive load, this indicator may be reduced.

3. Data Communication Rate: This parameter refers to the communication speed between the MCU controller and the host computer, which belongs to the theoretical maximum value. The communication rate will also be affected by the length of the field wiring, the number of loaded modules, the programming architecture of the host computer, and the hardware capabilities of the CPU.

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DAM-3019DA

DAM-3940B

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