dataTaker DT80 - High Speed Counter Inputs; Serial Channels

UM-0085-B09 DT80 Range User Manual Page 381
RG
Input Characteristics
Terminal
Limit
min
typ
max
unit
1D-4D
(1D-3D for DT81/82)
Input terminal voltage
-0.6
-
30
V
Input high voltage
2.2
-
-
V
Input low voltage
-
-
0.8
V
5D-8D
(4D for DT81/82)
Input terminal voltage
-0.6
-
20
V
Input high voltage
2.2
-
-
V
Input low voltage
-
-
0.8
V
Low speed counter input frequency
-
25
Hz
Low speed counter input pulse width
20
-
ms
Warning: Exceeding input voltage limits may cause permanent damage.
Output Characteristics
Terminal
Limit
min
typ
max
unit
1D-4D
(1D-3D for DT81/82)
Output sink current (output low)
-
-
100
mA
Output high voltage (no load) - 4.1 - V
Pull up resistance
-
47k
-
Ω
5D-8D
(4D for DT81/82)
Output high voltage
-
4.1
-
V
Pull down resistance
-
200k
-
Ω
1RELAY
Contact rating @ 30Vdc
-
-
1.0
A
High Speed Counter Inputs
Input Characteristics
Terminal
Limit
min
typ
max
unit
1C-2C
Input terminal voltage
-10
-
10
V
Input high voltage – counter mode, e.g. 1HSC
2.2
-
-
V
Input low voltage – counter mode
-
-
0.8
V
Input high voltage – phase encoder mode, e.g. 1PE
3.0
-
-
V
Input low voltage – phase encoder mode - - 0.8 V
Input high voltage – low threshold option, e.g. 1HSC(LT)
80
-
-
mV
Input low voltage – low threshold option
-
-
20
mV
Input frequency – relay/switch input
-
-
500
Hz
Input frequency – 3V p-p logic input
-
-
25k
Hz
3C-4C
5C-7C
Input terminal voltage -30 - 30 V
Input high voltage – counter mode, e.g. 3HSC
2.2
-
-
V
Input low voltage – counter mode
-
-
0.6
V
Input high voltage – phase encoder mode, e.g.
2PE
(DT80)
3.0
-
-
V
Input low voltage – phase encoder mode
-
-
0.8
V
Input frequency – relay/switch input - - 500 Hz
Input frequency – 3V p-p logic input
-
-
25k
Hz
Warning: Exceeding input voltage limits may cause permanent damage.
Serial Channels
Number of Ports
Item
DT81
DT82E
DT82EM
DT82I
DT80
DT80LM
DT85
DT85LM
SDI-12 network connections (shared with digital I/O)
1
1
1
-
4
4
4
4
Total possible SDI-12 sensors
10
10
10
-
40
40
40
40
RS232/422/485 serial sensor port (shared with host
communications)
- - - 1 1 1 1 1
RS232 serial sensor port (shared with host
communications)
1 1 - 1 1 - 1 -
USB port (shared with host communications) 1 - - - 1 1 1 1