SIG-5600 – 4-Port I/O Gateway
SIG-5600 is an industrial remote I/O gateway equipped with 4 analog inputs, 4 digital inputs and 4 relay outputs. It lets you monitor sensors and control equipment remotely via Modbus/TCP (from PLC/HMI/SCADA or Modbus apps such as ModMap). Alongside Ethernet, it supports wireless connectivity via a USB Wi-Fi adapter for deployments where cabling is difficult.
Key features of the SIG-5600
- • Per-channel selectable analog measurement modes (voltage or current) so one device works with many sensor types.
- • Digital inputs support wet/dry contact wiring and include a counter function (useful for pulses/events).
- • Relay outputs support NO/NC and can be driven as ON/OFF or timed pulse via Modbus/TCP requests.
- • Supports up to 4 simultaneous TCP connections for parallel monitoring/control from multiple clients.
- • “Internet Switch” master mode + 1-bit ADC trigger function for distributed trigger/control scenarios without an HMI.
- • Ethernet connectivity with optional Wi-Fi via USB WLAN adapter (ideal where cabling is impractical).
Remote monitoring & control via Modbus/TCP
SIG-5600 exposes its I/O through Modbus/TCP, making it easy to integrate into existing industrial stacks. Monitor analog values, read digital states/counters, and switch relay outputs from PLCs, HMIs, SCADA software or Modbus tools.
- • Use one gateway for mixed sensors: voltage sensors, 4–20mA transmitters, and contact inputs.
- • Pulse output mode is ideal for resets, momentary triggers, and timed activations.
Internet Switch for distributed trigger/control
The Internet Switch concept lets devices interconnect so inputs on one device can drive outputs on another—useful for distributed sites and “if-this-then-that” control without adding an HMI at every location.
- • Use 1-bit ADC mode for threshold-style triggers from analog sensors.
- • Great for alarm-driven switching, remote interlocks, and distributed automation.
Digital Input
Input Type
Input Voltage Range
Number of Ports
Digital Output
Output Type
Number of Ports
Analog Input
Input Type
Resolution
Number of Ports
Network Physical Interface
Wired LAN
Ethernet Speed Auto Sense
1:1 or Cross-over Cable Auto Sense
1000 VAC Isolation
Wireless LAN
Software Functions
Wireless LAN Mode
Protocols
TCP/UDP
ICMP, DHCP, Modbus/TCP, mDNS
SSL/TLS
WPA-PSK / WPA2-PSK, WPA-Enterprise (TTLS / PEAP)
Indicators(LEDs)
LED
Management
spFinder
Security
Dimension
Size
Weight
Operating Environment
Input Voltage
PWR2 - DC jack, DC5V±0.2V
USB (Setup) - USB type-B, DC5V±0.2V
Protection
Current Consumption
Operating Temperature
Storage Temperature
Certificate
KC
CE
FCC
Downloads
- SIG-5600 DataSheet
- SIG-5600 User Manual
- CE Сertificate
- FCC Сertificate
- Declaration of RoHS Compliance
- Modbus/TCP Protocol
- ModMap Users' manual
- SIG-5600 Frequently Asked Questions

- [spfinder.zip] spFinder: Management program for Packageware Products(for Windows)
- [ModMap_21C.zip] : HMI application for Remote I/O Gateway (Supports Modbus/TCP)