36
Word(s)
Function
Bit(s)
267
00 to 04
Reserved by system (not accessible by user)
05
Host Link Level 0 Send Ready Flag
06 to 12
Reserved by system (not accessible by user)
13
Host Link Level 1 Send Ready Flag
14 and 15
Reserved by system (not accessible by user)
268
00 to 15
Reserved by system (not accessible by user)
269
00 to 07
Memory Cassette Contents 00: Nothing; 01: UM; 02: IOM (03: HIS)
08 to 10
Memory Cassette Capacity
0: 0 KW (no cassette); 3: 16 KW
11 to 13
Reserved by system (not accessible by user)
14
EEPROM Memory Cassette Protected or EPROM Memory Cassette Mounted Flag
15
Memory Cassette Flag
270
00
Save UM to Cassette Bit
Data transferred to Memory Cassette when Bit is turned
ON i PROGRAM
d
Bit
ill
t
ti
ll t
OFF
01
Load UM from Cassette Bit
y
ON in PROGRAM mode. Bit will automatically turn OFF.
An error will be produced if turned ON in any other
02
Compare UM to Cassette Bit
An error will be produced if turned ON in any other
mode.
03
Comparison Results
0: Contents identical; 1: Contents differ or comparison not possible
04 to 10
Reserved by system (not accessible by user)
11
Transfer Error Flag:
Transferring SYSMAC NET
data link table on UM during
active data link.
Data will not be transferred from UM to the Memory
Cassette if an error occurs (except for Board Checksum
Error). Detailed information on checksum errors
occurring in the Memory Cassette will not be output to
S
f
12
Transfer Error Flag: Not
PROGRAM mode
g
y C
p
SR 272 because the information is not needed. Repeat
the transmission if SR 27015 is ON.
13
Transfer Error Flag: Read Only
14
Transfer Error Flag: Insufficient
Capacity or No UM
15
Transfer Error Flag: Board
Checksum Error
271
00 to 07
Ladder program size stored in Memory Cassette
Ladder-only File: 04: 4 KW; 08: 8 KW; 12: 12 KW; ... (64: 64 KW)
00: No ladder program or no file
Data updated at data transfer from CPU at startup. The file must begin in segment 0.
08 to 15
Ladder program size and type in CPU (Specifications are the same as for bits 00 to 07.)
Data updated when indexes generated. Default value (after clearing memory) is 16.
272
00 to 10
Reserved by system (not accessible by user)
11
Memory Error Flag: PC Setup Checksum Error
12
Memory Error Flag: Ladder Checksum Error
13
Memory Error Flag: Instruction Change Vector Area Checksum Error
14
Memory Error Flag: Memory Cassette Online Disconnection
15
Memory Error Flag: Autoboot Error
SR Area
Section 3-4