52
Maxuum III Digital Electronic Indicator 2239028 Rev D
8.2.2 Operation
The measurement update rate is 16 Hz. Therefore; a new data
value is available every 62.5 ms. The transmission window char-
acteristics are illustrated in the following timing diagram:
8.2.3 Sleep Mode/Over range
The serial output signal is suspended for these conditions.
8.2.4 Electrical Characteristics (ASCII)
The ASCII format serial output is compatible with TTL voltage
levels, and it is capable of driving two standard TTL loads.
8.2.5 Power Input
The Maxum III requires a reg5V D.C. and GROUND
input to power the output circuitry.
8.3 Digimatic / BCD Output
This method is a clocked serial BCD data stream consisting of
13 digits totaling 52 bits, emulating Mitutoyo's format. The dig-
ital output permits the LCD displayed displacement to be trans-
ferred to an external device such as a printer, personal
computer or data collection system. The output is accessed via
a 6-pin or 10pin connector. The remote HOLD or UPDATE capa-
bility is not available on this output format.
Pin-out as follows:
REPEAT INTERVAL (62.5 mS)
51.27 mS
11.23 mS
Transmission Time
IdleTime
Pin #
Signal Name
Maxum III with 6-pin conn.
Signal Name
Maxum III with 10-pin conn.
1
N/A
Not for Customer Use***
2 SCLK
SCLK
3 SDAT
SDAT
4 SREQ
SREQ
5
Digital GND
Digital GND
6
Chassis GND
Chassis GND
7
N/A
Not for Customer Use***
8
N/A
Not for Customer Use***
9 N/A
RESET
10 N/A
HOLD
