[Introduction]:The 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 |
DOI | DOI switch output | DOI switching output interface, used in conjunction with C0M1 |
COMI | COM terminal of DOI | COM terminal of DOI |
DO2 | DO2 switch output | DO2 switch output interface, used in conjunction with COM2 |
COM2 | COM terminal of D02 | COM terminal of DO2 |
DO3 | DO3 switch output | 303 switching output interface, used in conjunction with COM3 |
COM3 | COM terminal of D03 | COM terminal of DO3 |
DO4 | DO4 switch output | 304 switching output interface, used in conjunction with COM4 |
COM4 | COM terminal of DO4 | COM tenninal of DOI |
DO5 | DO5 switch output | DOS switching output interface, used in conjunction with C0M5 |
COM5 | COM terminal of DOS | COM terminal of DO5 |
DO6 | DO6 switch output | 306 switching output interface, used in conjunction with C0\I6 |
COM6 | COM terminal of D06 | COM terminal of DO6 |
DO7 | DO7 switch output | 307 switching output interface, used in conjunction with C0M7 |
COM7 | COM terminal of DO7 | COM terminal of DO7 |
DO8 | DOS switch output | 308 switching output interface, used in conjunction with C0M8 |
COM8 | COM terminal of DOS | COM terminal of DOS |
VO+ | Power output positive pole | The positive pole of the power supply output is the same as the power supply voltage of the device. |
VO+ | Power output positive pole | The positive pole of the power supply output is the same as 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 factor,- settings; double-click within 2 seconds to automatically negotiate the expansion module |
A(RS485) | RS485 A interface | KS485 A interface |
B(RS485) | RS485 B interface | MS485 B interface |
G(RS485) | RS485G interface | R.S485G interface |
PE | ground | ground |
V-(DC9-36V ) | Negative pole of power supply | DC (9-3 6V) power supply negative interface |
V+ (DC9-36V) | Positive pole of power supply | DC (9-3 6V) power supply positive interface |
LAN1 | Network port | Standard RJ45 network cable interface |