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Address(es) Function
28000 to 28015 Group-2 High-density I/O Unit Error Flags for Units 0 to F
28200 to 28215 Special I/O Unit Error Flags for Units 0 to F
28300 to 28303 Communications Board Port A Error Code
28308 to 28311 Communications Board Port B Error Code
AR Area
Address(es) Function
0000 to 0009 Special I/O or PC Link Unit Error Flags
0010 SYSMAC LINK/SYSMAC NET Link Level 1 System Error Flags
0011 SYSMAC LINK/SYSMAC NET Link Level 0 System Error Flags
0012 Rack-mounting Host Link Unit Level 1 Error Flag
0013 Rack-mounting Host Link Unit Level 0 Error Flag
0014 Remote I/O Master Unit 1 Error Flag
0015 Remote I/O Master Unit 0 Error Flag
0200 to 0204 Error Flags for Slave Racks 0 to 4
0205 to 0214 Group-2 High-density I/O Unit Error Flags (AR 0205 to AR 0214 correspond to I/O numbers 0 to 9.)
0215 Group-2 High-density I/O Unit Error Flag
0300 to 0315 Optical I/O Units (0 to 7) Error Flags
0400 to 0415 Optical I/O Units (8 to 15) Error Flags
0500 to 0515 Optical I/O Units (16 to 23) Error Flags
0600 to 0615 Optical I/O Units (24 to 31) Error Flags
0713 to 0715 Error History Bits
1114 Communications Controller Error Flag Level 0
1115 EEPROM Error Flag for operating level 0
1514 Communications Controller Error Flag Level 1
1515 EEPROM Error Flag for operating level 1
9-6 Host Link Errors
These are the response codes (end codes) that may be returned in the response
frame. When two or more errors occur, the end code for the first error will be re-
turned.
End
code
Contents Probable cause Corrective measures
00 Normal completion --- ---
01 Not executable in RUN mode The command that was sent cannot
be executed when the PC is in RUN
mode.
Check the relation between the
command and the PC mode.
02 Not executable in MONITOR
mode
The command that was sent cannot
be executed when the PC is in
MONITOR mode.
03 UM write-protected The PC’s UM is write-protected. Turn OFF pin 1 of the CPU Unit’s
DIP switch.
04 Address over The program address setting in an
SV Read or SV Change command
exceeds the 65,535 maximum.
Correct the program address setting
and transfer the command again.
13 FCS error The FCS is wrong. Either the FCS
calculation is mistaken or there is
adverse influence from noise.
Check the FCS calculation method.
If there was influence from noise,
transfer the command again.
14 Format error The command format is wrong or a
command that can’t be divided has
been divided.
Check the format and transfer the
command again.
15 Entry number data error The data is outside of the specified
range or too long.
Correct the data and transfer the
command again.
Host Link Errors Section 9-6