GE 90-30/20/Micro manual 137

Contents

SVCREQ #2: Read Window Values	4-137
SVCREQ #3: Change Prog.Communications Window Mode & Timer Value	4-139
Example:	4-140
SVCREQ #4: Change System Comm. Window Mode and Timer Value	4-141
SVCREQ #6: Change/Read Number of Words to Checksum	4-143
To Read the Current Word Count:	4-143
To Set a New Word Count:	4-143
Example:	4-144
SVCREQ #7: Change/Read Time-of-Day Clock	4-145
Example:	4-146
Parameter Block Contents	4-147
To Change/Read Date and Time Using BCD Format:	4-147
To Change/Read Date and Time using Packed ASCII with Embedded Colons
Format	4-148
SVCREQ #8: Reset Watchdog Timer	4-149
Example:	4-149
SVCREQ #9: Read Sweep Time from Beginning of Sweep	4-150
Example:	4-150
SVCREQ #10: Read Folder Name	4-151
Example:	4-151
SVCREQ #11: Read PLC ID	4-152
Example:	4-152
SVCREQ #12: Read PLC Run State	4-153
Example:	4-153
SVCREQ #13: Shut Down (Stop) PLC	4-154
Example:	4-154
SVCREQ #14: Clear Fault Tables	4-155
Example:	4-155
SVCREQ #15: Read Last-Logged Fault Table Entry	4-156
Example 1:	4-157
Example 2:	4-158
SVCREQ #16: Read Elapsed Time Clock	4-160
Example:	4-160
SVCREQ #18: Read I/O Override Status	4-161
Example:	4-161
SVCREQ #23: Read Master Checksum	4-162
Example:	4-162
SVCREQ #26/30: Interrogate I/O	4-163
Example:	4-163
SVCREQ #29: Read Elapsed Power Down Time	4-164
Example:	4-164
SVCREQ #46:Fast Backplane Status Access	4-165
Read Extra Status Data (Function #1)	4-165
Write Data (Function #2)	4-167
Read/Write Data (Function #3)	4-168
Example 1:	4-169
Example 2:	4-170
PID	4-171
Parameters:	4-172
Valid Memory Types:	4-172

xiv Series 90-30/20/Micro Programmable Controllers Reference Manual–September 1998 GFK-0467K