Data Sheet for Product

2
Siemens CB1Q3903en
Smart Infrastructure 2020-04-08
Application and features
Engineering • Freely programmable
• Graphical programming using Climatix SAPRO tool
Terminal • Operating voltage AC 24 V or DC 24 V
• 8 universal I/Os
• 3 analog inputs NTC 10k and NTC 100k
• DC 24 V power supply for active sensors and DC 5 V for ratiometric sensors
• 2 digital inputs for potential-free contacts
• 2 digital inputs AC/DC 24 V, galvanically separated
• 2 digital inputs AC 115 / 230 V, galvanically separated
• 8 relay outputs (6 NO contacts, 2 changeover contacts)
• 2 triac outputs (AC 24/115/230 V)
Interfaces • Local service connector for user interface and PC tools
• Ethernet port for local / remote servicing (web browser) and tools over IP
• Full modem RS-232 port for remote service
• SD card interface for application and firmware upgrades
Operation • Operating temperature without LCD -40...70 °C; with LCD -20...60 °C
Extensions • I/O extension with extension modules (local/remote)
• Third party integration via integrated RS-485 supporting Modbus RTU
• Networking over the process bus
• Communication modules supporting Modbus, BACnet, LON and M-bus
Topologies
Modbus RS485
Modem Service Interface
System integration
Peripheral Bus
User/Tool InterfaceIP Service interface
Process Bus
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