IET Labs, Inc. RLC Digibridge 1693 User And Service Manual page 119

Serial Poll -- Status Byte -- Table 9-19. When the bus
is in the serial poll mode and the Digibridge is ad-
dressed to talk, the Digibridge responds with a status
byte, which is encoded as shown in the table and sent
on the data lines DI01 through DI08.
Message Note Character
Code * ASCII
MLA SET #
TOT (SP) TO >
MTA SET C
TOT @ TO ****
SPD -- (EM)
SPE -- (CAN)
UNL -- ?
UNT -- --
Because the following messages are addressed commands, they will affect the Digibridge operation only while it is addressed to listen***
GET -- (BS)
GTL -- (SOH)
* Set = address setting as supplied by factory. Tot = total range of choice. See paragraph 2.7 for address changing procedure.
** Decimal equivalent makes DI08 (which is in material) a zero. Logical 1 is low state (true), logical 0 is high state.
*** Digibridge is addressed to listen by MLA message containing its device address (see para. 2.7). It terminates this condition
when it receives UNL command, which is necessary before it can make measurements or recognize its own keyboard.
****Mnemonic key to codes:
MLA=my listen address
MTA=my talk address
SPD= serial poll disable
SPE= serial poll enable
UNL = unlisten
UNT=untalk
GET = group execute trigger
GIL = go to local
DI08
DI07
DI06
DI05
DI04
DI03
DI02
DI01
Operation
Decimal
Equivalent DI08
**
35 X
32 TO 62 X
67 X
64 TO 94 X
25 X
24 X
63 X
95 X
8 X
1 X
Table 3-25: Interface message for remote control
Line Significance of a "1" (Low)
Remote
Request for service, RQS
Recalibration Required
Busy, measurement in process
Limits were tested
RLC measured value is available
QDR measured value is available
Bin No. assignment is available
Table 3-26: Status Code
DI07 DI06 DI05
0 1 0
0 1 <MSB – device – address – LSB>
1 0 0
1 0 <MSB – device – address – LSB>
0 0 1
0 0 1
0 1 1
1 0 1
0 0 0
0 0 0
Significance of a "0" (High)
Local
No request by this Digibridge
Normal Operation
Measurement Completed
Limits were not tested
RLC value is not available
QDR value is not available
Bin No. assignment is not available
1693 RLC Digibridge
DI04 DI03 DI02
0 0 1
0 0 1
1 0 0
1 0 0
1 1 1
1 1 1
1 0 0
0 0 0
DI01
1
1
1
1
1
1
0
1
95