5Ć4
b. To determine the register in the slot where the bus
error occurred, take the slot number you decode in
THIS RACK SLOT #" and decode the least significant
16 bits according to the type of module found in the
slot:
Any Local I/O Module*
Least Significant 16 Bits
1514131211109876543210
BIT
REGISTER
b
A Remote I/O Module (M/N 57C416)
Least Significant 16 Bits
1514131211109876543210
BIT
REGISTER
b
000
REMOTE
RACK SLOT
DROP
A Network Communications Module (M/N 57C404)
Least Significant 16 Bits
1514131211109876543210
BIT
REGISTER
b
000
DROP
The bit number being accessed may be determined from word
bit#=BYTEBIT#+(8*b)
If BYTE BIT # and 8*b = 0, address may have been accessed
as a word (integer) or bit 0 of byte 0.
* The hexadecimal number represents the Multibus
address of the error. Therefore, the standard Reliance
register number for any type of module can be decoded
from this figure and the figure in part a. For more specific
information, e.g., drop number, use the applicable figures
that follow.
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