Chengdu Zongheng Intelligence Control Technology Co., Ltd.
Internet of Things Devices and Solutions Provider
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Metal IOT Gateway 4 20 MA Controller With Rs485 AI AI Ports Relay Module
ZHC4661 is an industrial-grade 4G RTU that provides 4 channels of AI, 2 channels of AO and 1 channel of RS485 interfaces, supports Modbus RTU/TCP adaptive, automatic acquisition and active reporting, 4-20mA analog control acquisition, automatic calibration threshold reporting, support one-to-one, many-to-one connection, which can be widely used in power systems.
Antenna: LTE network antenna
SIM: Press the yellow dot on the side of the SIM card slot, pop out the card tray, and insert the SIM card
RESET: restore factory button
DC12~36V (DC power socket): DC12~36V input
DC12~36V (terminals): DC12~36V input
POW: Power indicator
WORK: Equipment operating status indicator
LINK: Network status indicator
DATA: Data transmission indicator
AI: 4~20mA analog signal input
485: RS485 interface
AO: 4~20mA analog signal output
Wiring: PC is connected to ZHC4661 via USB to RS485 tool.
Networking: Insert the SIM card before powering on the device.
Power supply: DC12~36V.
After power-on, open the corresponding serial port, you can configure the ZHC4661 through the host computer
Parameters of 4 20 mA Controller
| Analog Quantity | AI | AO |
| Number of Interface | 4 | 2 |
| Satandard | 4*AI 2*GND | 2*AO 2*GND |
| Detection / Output Range | 4~20mA | 4~20mA |
| Serial Port | ||
| Standard | RS485 (A / B) | |
| Baud Rate | 600~921600 bps | |
| Data Bit | 8, 9 | |
| Stop Bit | 0.5, 1, 1.5, 2 | |
| Parity Bit | NONE EVEN ODD | |
| Mechanical Structure | ||
| SIZE | 93*69*25mm(L*W*H) | |
| SHELL | Galvanized Steel Sheet | |
| Work TEMP. | -40℃~85℃ | |
| Storage TEMP. | -40℃~125℃ | |
| Work Humidity | 5~95% | |
| Storage Humidity | 1~95% | |
Function of 4 20 mA Controller ZHC4661
The signal current of general instruments is 4-20mA, which means that the minimum current is 4mA and the maximum current is 20mA. When transmitting a signal, consider that there is also resistance on the wire. If voltage transmission is used, a certain voltage drop will be generated on the wire, and a certain error will occur in the signal at the receiving end. Therefore, the current signal is generally used as the standard transmission of the transmitter.
ZHC4661 is a remote control product that supports analog follow and control acquisition.
Support 4 analog inputs, default current detection.
Support 2 analog output, default current output.
Support analog follow and control acquisition.
FAQ
Q1. How can we know the product quality?
A1: We have professional QA and QC teams, 100% quality inspection is performed before the goods out of the factory.
Q2:Can I have a small order? what's ur MOQ?
A2: Welcome to order sample to test and check quality. MOQ is 1 for normal item.
Q3: If I am not familiar with the operation, do you have a manual to help?
A3: Our Software, User Manual and Programme case can be downloaded freely on our official website, or you could consult the sales for those documents.Meantime, we have engineers team who could do help on your technician problem and give you useful solution.
Q4: Does your factory have the design and development capabilities, can you factory accept customized products?
A4: Our R&D department are well experienced in the IoT industry, We can make customized products especially for you.
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| ZHC4661 |
| RS485 Modbus | √ |
| RS485 Automatic Acquisition | √ |
| Virtual Serial Port | √ |
| Connfiguration Software | √ |
| Threshold Report | √ |
| Configuration Software Docking | √ |
| Modbus RTU/TCP | √ |