Measurement Computing DPG Series, Instruction Manual

Page: 10 / 15

Instruction Manual
DPG-Series Inclinometer
MEAS Deutschland GmbH www.meas-spec.com phone: +49-(0)231-9740-0
Hauert 13, D-44227 Dortmund, Germany 10 of 15 fax: +49-(0)231-9740-20
July 2015
6 Interface
6.1 Digital Output RS232
For digital communication, the standardized RS 232-Interface (V24) is used in duplex mode.
After startup the sensor transmits the angle values in degrees (°) continuously.
6.1.1 Electrical Levels
RS232:
PARAMETER TEST CONDITIONS MAX TYP
(†)
MIN UNIT
V
OH
High-level output voltage
D
OUT
at R
L
= 3 k
Ω
to GND, D
IN
=
GND
9 5 V
V
OL
Low-level output voltage
D
OUT
at R
L
= 3 k
Ω
to GND, D
IN
= VCC
−5 −9
V
I
IH
High-level input current V
I
= VCC 200 15 µA
I
IL
Low-level input current V
I
at 0 V
−1
5
−20
0
µA
I
OS
(‡)
Short-circuit output current Vcc = 5.5 V, V
O
= 0 V 60
±
10
−
60
mA
Ω
O
Output resistance
Vcc, V+, and V− = 0 V, V
O
=
±
2 V
300
Ω
(†) TA = 25
°
C.
(‡) Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and no more
than one output
6.1.2 Interface parameter for all NS–xx/DPG2–RUx (except NS–30/DPG2-RUN)
Baud rate: 9600 Baud
Format: ASCII, 8 data bits, 1 stop bit, no parity
String length: 22 byte
Layout: < D0 ... D21>
D0 ... D10 = “X=±xx.xxx“, <CR>, <LF>
with D2 = sign (+ or -)
with D5 = point
D11 ... D21 = “Y=±xx.xxx“, <CR>, <LF>
with D13 = sign (+ or -)
with D16 = point
6.1.3 Interface parameter for NS–30/DPG2–RUN
Baud rate: 9600 Baud
Format: ASCII, 8 data bits, 1 stop bit, no parity
String length: 20 byte
Layout: < D0 ... D19>
D0 ... D9 = “X=±xx.xx“, <CR>, <LF>
with D2 = sign (+ or -)
with D5 = point
D10 ... D19 = “Y=±xx.xx“, <CR>, <LF>
with D12 = sign (+ or -)
with D15 = point
…
X=+00.430
Y=-00.084
…
Example:
Example:
…
X=+00.43
Y=-00.08
…