[Introduction]:M31 series distributed IO host supports Modbus TCP protocol and Modbus RTU protocol for acquisition control. The device supports simultaneous access by 5 clients and supports function codes 01/02/03/04/05/06/15/16. The product adopts an scalable design in structure. During use, if the user finds that the current device has some functions When the needs cannot be met, you can select the corresponding IO expansion modules according to the missing functions and splice them together to achieve the functions. There is no need to purchase the whole machine. This saves costs and facilitates customers to access the current on-site environment; the modules are self-contained. With status diagnosis function, it can monitor the communication status of IO modules in real time; it can support a maximum of 16 IO expansion modules.
Symbol | name | Function/ Description |
AI1 | AI1 analog input | AI1 analog input interface, used in conjunction with COM1 |
COM1 | COM terminal of AI1 | COM terminal of AI1 |
AI2 | AI2 analog input | AI2 analog input interface, used in conjunction with COM2 |
COM2 | COM terminal of AI2 | COM terminal of AI2 |
AI3 | AI3 analog input | AI3 analog input interface, used in conjunction with COM3 |
COM3 | COM terminal of AI3 | COM terminal of AI3 |
AI4 | AI4 analog input | AI4 analog input interface, used in conjunction with COM4 |
COM4 | COM terminal of AI4 | COM terminal of AI4 |
AI5 | AI5 analog input | AI5 analog input interface, used in conjunction with COM5 |
COM5 | AI5 COM terminal | AI5 COM terminal |
AI6 | AI6 analog input | AI6 analog input interface, used in conjunction with COM6 |
COM6 | COM terminal of AI6 | COM terminal of AI6 |
AI7 | AI7 analog input | AI7 analog input interface, used in conjunction with COM7 |
COM7 | COM terminal of AI7 | COM terminal of AI7 |
AI8 | AI8 analog input | AI8 analog input interface, used in conjunction with COM8 |
COM8 | AI8 COM terminal | AI8 COM terminal |
VO+ | Power output positive pole | The positive pole of the power supply output is consistent with the power supply voltage of the device. |
VO+ | Power output positive pole | The positive pole of the power supply output is consistent with the power supply voltage of the device. |
VO- | Power output negative pole | The negative pole of the power supply output is the same as the power supply voltage of the device. |
Reload | Factory reset/auto-negotiation | Press and hold for 5-10 seconds to restore factory settings;double-click within 2 seconds to automatically negotiate the expansion module |
A(RS485) | RS485 A interface | RS485 A interface |
B(RS485) | RS485 B interface | RS485 B interface |
G(RS485) | RS485G interface | RS485G interface |
PE | ground | ground |
V-(DC9-36V) | Negative pole of power supply | DC (9-36V) power supply negative interface |
V+(DC9-36V) | Positive pole of power supply | DC (9-36V) power supply positive interface |
LAN1 | Network port | Standard RJ45 network cable interface |