InLog L-4250 Two Ethernet Digital 10-ch (Dry/Wet) 6-ch (NPN) I/O Module

InLog L-4250 Two Ethernet Digital 10-ch (Dry/Wet) 6-ch (NPN) I/O Module


  • 2-ports(RJ-45) Ethernet 10/100 Based-T Comm.
  • Daisy chain connection with auto-bypass protection
  • Support Modbus/TCP,TCP/IP,UDP,ICMP,ARP
  • Support Automatic DIO Sync.(peer-to-peer).
  • DO Auto-Off Time Mode.
  • Support 6 Isolated digital output channels (NPN).
  • Support 10 Isolated digital Input Channels(Dry/Wet)
  • Fully Photo-Isolation 3750Vrms
  • Protocol: ASCII Format & Modbus TCP


The EDAM-4250 is a high-density I/O module built-in two ports(RJ-45) 10/100 based-T interface for seamless Ethernet connectivity. It provides 10 Isolated digital input (Dry/WetContact) and 6 digital output channels with 3750VRMS Isolating protection. All of the Digital Input channels support input latch function for important signal handling. Mean while, these DI channels allow to be used as 300Hz counter.

Opposite to the intelligent DI functions, the Digital Output channels also support pulse output function.

Daisy Chain Networking and Auto-Bypass Protection

Daisy Chain Networking and Auto-Bypass Protection Daisy chain connectivity offers flexible cabling and space saving capabilities. With Ethernet auto-bypss function supported, it prevents accidental power failure if one of the module’s unexpectedly shuts down.

Automatic DIO Synchronization (peer-to-peer)

EDAM-4250 module also provide a Automatic DIO Synchronization function. With peer-to-peer networking, users can define the mapping between a pair of EDAM-4200 series modules so that input values will be directly transferred to output channels. A single digital output channel (Local/Remote device) is activated(1/0 or toggle) dependent on the digital input channels state data pattern. When the specified DI channels state data pattern changed from “Match” to “Notmatch” the corresponding DO will be set to active(1 or 0).


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Interface  2-port(RJ45) Ethernet 10/100 Based-T comm.
Communication Support TCP/IP, UDP, ICMP and ARP
RJ-45 Connection Daisy Chain Connection with auto-bypass protection
Command Protocol ASCII Format, Modus/TCP
Digital Input  
Channel 10 Channels
Input Level Logic Level Status can be inversed via ASCII/Modbus command
Input Type Isolated single ended with common source/ground
Dry Contact Logic level 0 (active) : Close to GNDLogic level 1 (inactive): Open
Wet Contact

Logic level 0 (active) : +5V to +30VDC maxLogic level 1 (inactive) : +2VDC max

Input Impedance

2K ohm (Wet Contact)

Counter Input

300Hz counter input (32-bit + 1-bit overflow)

Optical Isolation Voltage

3750 Vrms

Digital Output  
Channel 6 Channels
Digital Output isolated open collector (NPN)
Output logical level Logic level status can be inversed via ASCII/Modbus command
Output Load Voltage +5V ~ +30V
Max Load Current 500mA/per channel
Pulse Output Each Channel supports 300Hz pulse output
Optical Isolation 3750 Vrms
Status Indicator LED indicator
Power Requirement +10 to +30VDC
Power Consumption 3.5 W (Typical)
Operating Temperature -10 ~ 70° C (14 ~ 158° F)
Humidity  5 ~ 95% RH, non-condensing