34
Note all SR words and bits are writeable by the user. Be sure to check the func-tion of a bit or word before attempting to use it in programming.
Word(s) Bit(s) Function
236 00 to 07 Node loop status output area for operating level 0 of SYSMAC NET Link System
08 to 15 Node loop status output area for operating level 1 of SYSMAC NET Link System
237 00 to 07 Completion code output area for operating level 0 following execution of
SEND(90)/RECV(98) SYSMAC LINK/SYSMAC NET Link System
08 to 15 Completion code output area for operating level 1 following execution of
SEND(90)/RECV(98) SYSMAC LINK/SYSMAC NET Link System
238 and 241 00 to 15 Data link status output area for operating level 0 of SYSMAC LINK or SYSMAC NET Link
System
242 and 245 00 to 15 Data link status output area for operating level 1 of SYSMAC LINK or SYSMAC NET Link
System
246 00 to 15 Reserved by system
247 and 248 00 to 07 PC Link Unit Run Flags for Units 16 through 31 or data link status for operating level 1
08 to 15 PC Link Unit Error Flags for Units 16 through 31 or data link status for operating level 1
249 and 250 00 to 07 PC Link Unit Run Flags for Units 00 through 15 or data link status for operating level 0
08 to 15 PC Link Unit Error Flags for Units 00 through 15 or data link status for operating level 0
251 00 Remote I/O Error Read Bit
Writeable 01 and 02 Not used
Writeable
03 Remote I/O Error Flag
04 to 06 Unit number of Remote I/O Unit, Optical I/O Unit, or I/O Terminal with error
07 Not used
08 to 15 Word allocated to Remote I/O Unit, Optical I/O Unit, or I/O Terminal with error (BCD)
252 00 SEND(90)/RECV(98) Error Flag for operating level 0 of SYSMAC LINK or SYSMAC NET
Link System
01 SEND(90)/RECV(98) Enable Flag for operating level 0 of SYSMAC LINK or SYSMAC NET
Link System
02 Operating Level 0 Data Link Operating Flag
03 SEND(90)/RECV(98) Error Flag for operating level 1 of SYSMAC LINK or SYSMAC NET
Link System
04 SEND(90)/RECV(98) Enable Flag for operating level 1 of SYSMAC LINK or SYSMAC NET
Link System
05 Operating Level 1 Data Link Operating Flag
06 Rack-mounting Host Link Unit Level 1 Communications Error Flag
07 Rack-mounting Host Link Unit Level 1 Restart Bit
08 Peripheral Port Restart Bit
09 RS-232C Port Restart Bit
10 PC Setup Clear Bit
11 Forced Status Hold Bit
12 Data Retention Control Bit
13 Rack-mounting Host Link Unit Level 0 Restart Bit
14 Not used.
15 Output OFF Bit
253 00 to 07 FAL number output area (see error information provided elsewhere)
08 Low Battery Flag
09 Cycle Time Error Flag
10 I/O Verification Error Flag
11 Rack-mounting Host Link Unit Level 0 Communications Error Flag
12 Remote I/O Error Flag
13 Always ON Flag
14 Always OFF Flag
15 First Cycle Flag
SR Area Section 3-4