DM43 / DM43U
4 x Digital Input
3 x Digital Output
Modbus RTU DIO
1 x RS485
USB Virtual COM control (optional)
OverviewSpecificationsOrdering InformationInquiryResources
Reading from digital input using Modbus RTU.
Sending command to digital output using Modbus RTU.
Provide software for configuration
Operate as a Modbus Slave device receiving command from Modbus Master device.
| CPU | 8 bits CPU |
| RAM | 2 KB SDRAM |
| ROM | 32 KB Flash ROM |
| Serial Interface
For control digital input and digital output |
Port Type : 1 x RS485 2-pin Terminal Block Speed : 9600 bps ~ 115.2 Kbps Parity : None , Odd , Even Data Bit : 8 Stop Bit : 1 , 2 Protection : RS485 Surge Protection |
| USB Interface
For control digital input and digital output |
Port Type : 1 x USB Virtual COM port Chipset : FTDI |
| Operating Temperature | -10°C ~ 70°C |
| Storage Temperature | -15°C ~ 75°C |
| Operating Humidity | 10% ~ 95% non-condensing |
| Storage Humidity | 5% ~ 95% non-condensing |
| Software | Protocol : Modbus RTU OS supported : Windows 10 Configuration : Utility for Windows |
| Digital input
Digital output |
Digital Input : 4 (active High / Low selectable) Digital Output : 3 (active High / Low selectable) DO x 3 : Relay output, 125V [email protected], 30V DC@1A DI x 4 : 3000 VDC Isolation Protect Wet contact Logic level 0 : 0 ~ 2 V Logic level 1 : 5 ~ 20 V Dry contact Logic level 0 : close to GND Logic level 1 : open |
| Power supply | DC 5~24V, 100mA@ 12VDC USB bus Power 5V@300mA |
| Approvals | FCC Part15 Class A CE EN55022 Class A, EN55024 RoHS Compliance |
| Warranty | 1 year |
Product specifications are subject to change without prior notice
| Item | Description |
| DM43 | Modbus RTU Digital I/O over RS485 |
| DM43U | Modbus RTU Digital I/O over RS485 / USB |
| File | Description | File size |
|---|---|---|
MODBUS RTU Protocol for 4DI4DO
|
|
68 KB |
|
DM43 DM43U Operation & Test Guide (EN)
|
|
433 KB |
|
DM43 DM43U Operation & Test Guide (TC)
|
|
440 KB |
Modbus RTU Setup Utility for 4AI 2AO 4DI 4DO
|
|
56 KB |