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Chapter 6 Service Request Function
Use a Service Request function to request one of the following control system services:
SVC_REQ 1: Change/Read Constant Sweep Timer
SVC_REQ 2: Read Window Modes and Time Values
SVC_REQ 3: Change Controller Communications Window Mode
SVC_REQ 4: Change Backplane Communications Window Mode and Timer Value
SVC_REQ 5: Change Background Task Window Mode and Timer Value
SVC_REQ 6: Change/Read Number of Words to Checksum
SVC_REQ 7: Read or Change the Time-of-Day Clock
SVC_REQ 8: Reset Watchdog Timer
SVC_REQ 9: Read Sweep Time from Beginning of Sweep
SVC_REQ 10: Read Target Name
SVC_REQ 11: Read Controller ID
SVC_REQ 12: Read Controller Run State
SVC_REQ 13: Shut Down (STOP) CPU
SVC_REQ 14: Clear Controller or I/O Fault Table
SVC_REQ 15: Read Last-Logged Fault Table Entry
SVC_REQ 16: Read Elapsed Time Clock
SVC_REQ 17: Mask/Unmask I/O Interrupt
SVC_REQ 18: Read I/O Forced Status
SVC_REQ 19: Set Run Enable/Disable
SVC_REQ 20: Read Fault Tables
SVC_REQ 21: User-Defined Fault Logging
SVC_REQ 22: Mask/Unmask Timed Interrupts
SVC_REQ 23: Read Master Checksum
SVC_REQ 24: Reset Module
SVC_REQ 25: Disable/Enable EXE Block and Standalone C Program Checksums
SVC_REQ 29: Read Elapsed Power Down Time
SVC_REQ 32: Suspend/Resume I/O Interrupt
SVC_REQ 45: Skip Next I/O Scan
SVC_REQ 50: Read Elapsed Time Clock
SVC_REQ 51: Read Sweep Time from Beginning of Sweep
SVC_REQ 56: Logic Driven Read of Nonvolatile Storage
SVC_REQ 57: Logic Driven Write to Nonvolatile Storage
The following Service Requests are used in CPU HSB redundancy applications.
Refer to the PACSystems Hot Standby CPU Redundancy User's Guide, GFK-2308. For non-HSB applications,
refer to PACSystems RX7i, RX3i and RSTi-EP TCP/IP Ethernet Communications User Manual, GFK-2224.
SVC_REQ 26 Role switch (redundancy)
SVC_REQ 27 Write to reverse transfer area (Hot Standby Redundancy)
SVC_REQ 28 Read from reverse transfer area (Hot Standby Redundancy)
SVC_REQ 43 Disable data transfer copy in backup unit (Hot Standby Redundancy)
SVC_REQ 55 Set application redundancy mode (non-Hot Standby Redundancy)
GFK-2950C
February 2018
275
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