ACL CSC400 - Page 3

4-20mA Output Connection Notes for Rev 1D CSC400 boards ......................................................................................... 52
DIP Switch Option Settings ................................................................................................................................................. 53
Appendix A - CSC400 Rev 1D Technical Specifications ............................................................................................................ 54
Appendix B - Modbus/RS-485 Cabling Technical Details .......................................................................................................... 56
RS-485 Signal Naming Conventions ................................................................................................................................... 56
Half-Duplex vs Full-Duplex ................................................................................................................................................ 56
Cable Types ......................................................................................................................................................................... 56
Wiring topology ................................................................................................................................................................... 57
Line Polarization.................................................................................................................................................................. 57
Termination ......................................................................................................................................................................... 58
Number of Allowed Devices on the RS-485 ....................................................................................................................... 58
Slew Rate ............................................................................................................................................................................. 58
Isolated (or Common) Ground ............................................................................................................................................. 58
Appendix C - Programming a New Modbus Slave ID (Address) ................................................................................................ 59
Appendix D - Troubleshooting .................................................................................................................................................... 60
Additional Documents
The following additional documents for the CSC400 Combustion Safety Controller are available.
Document Filename
Document Description
CSC400_Modbus_Installation_Manual.pdf
Modbus documentation containing more in-depth register
descriptions and additional technical details.