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tem in operating level 0; the other half, in a Subsystem in operating level 1.
The actual bit assignments depend on whether the PC is in a Single-level PC
Link System or a Multilevel PC Link System. Refer to the PC Link System
Manual for details. Error and Run Flag bit assignments are described below.
Bits 00 through 07 of each word are the Run flags, which are ON when the
PC Link Unit is in RUN mode. Bits 08 through 15 are the Error flags, which
are ON when an error has occurred in the PC Link Unit. The following table
shows bit assignments for Single-level and Multi-level PC Link Systems.
Single-level PC Link Systems
Flag type Bit no. SR 247 SR 248 SR 249 SR 250
Run flags 00 Unit #24 Unit #16 Unit #8 Unit #0
01 Unit #25 Unit #17 Unit #9 Unit #1
02 Unit #26 Unit #18 Unit #10 Unit #2
03 Unit #27 Unit #19 Unit #11 Unit #3
04 Unit #28 Unit #20 Unit #12 Unit #4
05 Unit #29 Unit #21 Unit #13 Unit #5
06 Unit #30 Unit #22 Unit #14 Unit #6
07 Unit #31 Unit #23 Unit #15 Unit #7
Error flags 08 Unit #24 Unit #16 Unit #8 Unit #0
09 Unit #25 Unit #17 Unit #9 Unit #1
10 Unit #26 Unit #18 Unit #10 Unit #2
11 Unit #27 Unit #19 Unit #11 Unit #3
12 Unit #28 Unit #20 Unit #12 Unit #4
13 Unit #29 Unit #21 Unit #13 Unit #5
14 Unit #30 Unit #22 Unit #14 Unit #6
15 Unit #31 Unit #23 Unit #15 Unit #7
SR Area Section 3-4
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