Modbus TCP Gateway IOT Cellular Modem Support 4G Wireless Communication

• Introduction​ of IOT Cellular Modem

Product model: ZHC4931, providing 1RS485/1RS232/1DI/1DO/1AI interface.
Features: Threshold reporting, wet and dry node detection, and the device itself supports logical operations.
Protocol: Support Modbusr RTU/TCP adaptive.
Industrial-grade quality: anti-reverse connection, anti-surge, dual watchdogs, can work normally at -20℃~+60℃
The product is suitable for: data security monitoring, remote water pump automatic control, water resources real-time management system

Parameters of IOT Cellular Modem

• Features of IOT Cellular Modem
• Support 1 relay output
  Support 2-way DI (dry/wet node) input
  Support 1 analog quantity (current) input
  Support 8 conditional control instructions, control more convenient
  Support 1 RS485/RS232 can not be used at the same time
  Support serial heartbeat package
  Support multiple function codes: 01, 02, 03, 04, 05, 06, 0F, 10
  Support setting the direction of active data reporting
  Support TCP_Client, HTTP_Client
  Support two working modes: master mode, slave mode, master mode supports cascading multiple Modbus devices
• Compatible with Modbus RTU/TCP
  Support cloud forwarding, cloud networking
  Support local upgrade and remote upgrade
  Support hardware watchdog
  Multiple indicator lights show working status
  Support domain name address resolution
  Support setting APN
  Support signal quality query
  Support SIM card number query
  Support heartbeat package
  Support any format of registration package to ensure the legitimacy and uniqueness of the device identity
  Provide one switch output
  Support timing flip relay status
  Support setting relay start state