Products
DAM-3028MC
DAM-3028MC is 8-channel isolated digital input and 8-channel C-type signal relay output module, and it supports RS485 communication interface and standard ModbusRTU protocol. It is equipped with a good human-computer interface, so it is easy to use and its performance is stable.
Category:
Products
Data acquisition module
RS485 acquisition module
Product description
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Analog Input |
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Input Channel |
8 single-ended digital inputs (dry contact or wet contact common anode) |
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Digital Input Voltage |
Dry contact: logic level 0: INx and IN.GND shorted Logic level 1: INx open circuit or floating Wet Contact: Logic Level 1: IN.COM Input Voltage: 0~+3V (Max) INx is connected to the negative terminal of the input voltage Logic level 0: IN.COM input voltage: +10V～+30V INx is connected to the negative terminal of the input voltage Note: The high level state of floating and wet contacts is the same. |
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Operating Mode |
DI input, low-to-high latch, high-to-low latch, counter, frequency measurement |
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Support Counter Function |
32 bit |
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Counter/Frequency Input Range |
0~400Hz |
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Others |
Support DI reverse function and signal filtering function |
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Digital Output |
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Channel |
8-channel C-type signal relay, normally open + normally closed contact |
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Rated Control Capacity (Resistive Load) Note 1 |
Ag+Au clad (silver+gold cladding) |
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Contact Maximum Allowable Current (Resistive Load) |
2A, 30V DC |
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Contact Maximum Switching Voltage (Resistive Load) Note 2 |
2A |
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Minimum Applicable Load(Resistive Load) |
220V DC |
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Relay Off Time |
10µA 10mV DC |
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Relay On Time |
4ms (max) |
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Mechanical Life |
4ms (max) |
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Electrical Life |
More than 100 million times (on-off frequency 180 times/min) |
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Operating Mode |
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) |
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Others |
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Communication Interface |
RS485 |
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RS485 Transfer Rate Note 3 |
Maximum 180 times/second (total channel of single module, under 115200bps) Maximum 24 times/second (total channel of single module, under 9600bps) Maximum 3 times/second (total channel of single module, under 1200bps) |
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Baud Rate |
1200~115200bps |
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Watchdog |
software watchdog |
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Supply Voltage |
+10~30VDC |
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Power Protection |
Power reverse protection |
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Power Consumption |
Rated 0.5W @ 24VDC |
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Operating Temperature |
-10℃～＋70℃ |
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Storage Temperature |
-40℃～＋80℃ |
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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