GE RX3i

Chapter 5. Ethernet Global Data
GFK-2224Q January 2017 83
TASK: For the PACSystems Ethernet module, Task must be set to 98 (62H).
For the PACSystems CPU embedded Ethernet interface, Task must be set to the value 65634 (10062H)
to address the CPU’s Ethernet daughterboard.
Caution
Entering an incorrect TASK value may cause the Ethernet Interface to fail.
FT Output: The FT output is set if the PLC CPU (rather than the Ethernet Interface) detects that the COMMREQ
fails. In this case, the other status indicators are not updated for this COMMREQ.
Read Ethernet Clock Status and Stratum COMMREQ (5001)
This COMMREQ is used to read the clock status and stratum from the specified Ethernet Interface.
If multiple Ethernet modules are enabled for TOD Clock Synchronization, the application logic must examine the
stratum at each Ethernet module to determine which Ethernet module to select.
Command Block for Read Ethernet Clock Status and Stratum COMMREQ
Word Offset Value Description
Word 1 Length of command data block. Always 3.
Word 2 0 Always 0 (Wait/No Wait mode request).
Word 3 For a list of memory type codes, see
“COMMREQ Status for the EGD
Commands” in Chapter 6.
Memory type of the COMMREQ status word.
Word 4 0-based Offset of COMMREQ status word. For CRS word
values, refer to page 86.
Word 5 0 Always 0.
Word 6 0 Always 0.
Word 7 5001 Read Clock Status and Stratum command number.
Word 8 For a list of memory type codes, see
“COMMREQ Status for the EGD
Commands” in Chapter 6.
Memory type of the storage location for the clock
status and stratum values retrieved from the
Ethernet interface.
Word 9 Any valid offset within memory type
specified in Word 8. This is a
1-based number.
Ethernet Clock Status and Stratum reference
address offset
The Ethernet clock status and stratum values from the locked time server (if any) are returned as two
consecutive words.