ZHC1921 Ethernet Modbus RTU is a network IO product that supports 6 channels of dry (wet) node detection, 4 channels of relay (COM, NO) output, 4 channels of analog (current 4~20mA) detection, and one serial port transparent transmission. It is compatible with Modbus RTU/TCP protocol. With “remote control” as the core function, it is highly easy to use, and users can easily and quickly integrate into their own systems to realize Remote, LAN, and local control of Ethernet and RS485.
| Network parameters | Serial port | |||
| Network Type | Ethernet | number of ports | RS485*1 | |
| Number of network ports (10/100M) | LAN *1 | standard | RS485: A, B | |
| Network port type | Ethernet signal RJ45 | baud rate | 600~921600bps | |
| Electromagnetic isolation protection | 1.5KV Electromagnetic Isolation | data bits | 8, 9 | |
| Crossover direct connection automatic switching | -- | stop bit | 0.5 , 1 , 1.5 , 2 | |
| External network transformer | unnecessary | Check Digit | NONE EVEN ODD | |
| DO | AI | |||
| Number of interfaces | 4 switching outputs | Number of interfaces | 4 analog inputs | |
| Standard | NO*4, COM*4 | standard | AI*4, GND*2 | |
| Mechanical durability | 10^7 | scope of test | 4~20mA | |
| Electrical durability | 10^5 | |||
| Capacity | 5A | PI | ||
| 250VAC 30VDC | Number of interfaces | 2 pulse count | ||
| Standard | PI*2, COM*1 | |||
| DI | Examination Range | 10000Hz | ||
| Number of interfaces | 6 switch inputs | |||
| Standard | DI*6, COM*1 | EMC | ||
| Detection range (wet node) | 5~50V->High | ESD | IEC61000-4-2, Level 4 | |
| 0~2V->Low | Surge | IEC61000-4-2, Level 3 | ||
| Group Pulse | IEC61000-4-2, Level 3 | |||
| Power supply | ||||
| Voltage | 12~36V | |||
| Current | 60mA(aver) @12V | |||
| 30mA(aver) @36V |
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