EPICS ADS Device Support User Manual

EPICS ADS device support library is intended to connect EPICS database records to ADS variables and registers on ADS capable devices, also called ADS servers. ADS is a client/server interface or a set of commands (further referred as ADS protocol) that is used for communication with ADS capable devices. The basic set of ADS commands is:

• Read/write ADS data.

• Add/remove ADS data notification (subscribtion to value change on the device).

• Read ADS device state and information.

The ADS protocol is encapsulated within the AMS protocol, which is itself usually encapsulated within the TCP protocol.

Contents:

• Overview
  • Software
  • Terminology
• Installation Guide
  • Dependencies
  • AutoparamDriver
  • ADS Driver
• Using EPICS ADS
  • ADS Example IOC
  • ADS Device Support in a New IOC
• Reference Manual
  • Database record configuration
  • IOC shell commands
  • Supported EPICS record types
  • Supported TwinCAT PLC data types
  • Database record configuration examples
  • Supported ADS port names
• Troubleshooting
  • IOC fails to connect with “read frame failed with error: Connection reset by peer” errors
  • IOC fails to connect with “Info: connection closed by remote” messages
  • IOC fails to connect with “Connect TCP socket failed with: 111” errors
  • IOC fails to connect with “Connect TCP socket failed with 110; Adding ADS route failed” error
  • IOC loses ADS connection with “read frame failed with error: Connection reset by peer” and “connection closed by remote” messages
  • IOC fails to connect with “Connect TCP socket failed with 113; Adding ADS route failed” error
  • IOC connects but prints “Port 0x2710 is out of range” and “No response pending” warnings