Datasheet

TEK.COM 33
DAQ6510 Data Acquisition and Logging, Multimeter System
The 7706 plug-in module offers 20 channels of 2-pole or 10
channels of 4-pole multiplexer switching with automatic CJC, as well
as two analog output channels, 16 digital outputs, and one event
counter/totalizer. The event counter/ totalizer can be used to monitor
and control system components, such as fixtures, limit switches,
pass/fail indicators, external voltage sources, loads, door closures,
revolutions, etc., while performing mixed signal measurements. The
7706 is ideal for RTD, thermistor, and thermocouple temperature
applications.
Key Features
• 20 channels of analog input (w/automatic CJC) for general-
purpose measurements
• 16 channels of digital output
• 2 analog outputs (±12 V, 5 mA)
• 300 V, 1 A capacity; 60 W, 125 VA maximum
• Configurable as two independent banks of multiplexers
• Relay closures stored in onboard memoryy
Series 7700 Plug-In Switch Modules
Channel 22
NOTE: Non-isolated
grounds ( )
are referenced to
chassis ground.
Channel 23
DAC
Channel 23
16
Channel 24
DAC
Channel 24
16
Totalizer
+IN
—IN
+GATE
—GATE
Channel 25
32
Cold junction
Ref ×2
Channel 1
HI
LO
Channel 10
HI
LO
(Channels 2—9)
Channel 11
HI
LO
Channel 20
HI
LO
(Channels 12—19)
HI
LO
Sense
HI
LO
Input
Channel 26
2-Pole (Open)
4-Pole (Closed)
(see Note)
To
Instrument
Backplane
Channel 28
(see Note)
Backplane
isolation
Channel 27
(see Note)
Backplane
isolation
NOTES: Channels 26—28 in this schematic
refer to the designations used for
control and not actual available
channels.
Channels 26, 27, and 28 can be
individually controlled using
ROUTe:MULTiple if the module is not
to be connected to the internal DMM.
For more information, refer to
theROUTe:MULTiple command
section in the Instrument Users
Manual.
Sense
HI
LO
Input
HI
LO
Bit
16
Channel 21
Digital
Output
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Cold junction
Ref ×2
7706 All-in-One I/O Module 20-channel Differential Multiplexer w/Automatic
CJC, 16 Digital Outputs, 2Analog Outputs, a Counter/Totalizer, and Screw Terminals
Datasheet
Specifications
Capabilities
Channels 1–20 Multiplex one of 20 2-pole or one of 10 4-pole signals into DMM.
Channels 21–22 16 Digital Outputs.
Channels 23–24 Analog Voltage Output (2).
Channels 25 Totalize Input.
Channels 21–25 are referenced to chassis ground.
Inputs (Channels 1–20)
Maximum Signal Level (Channels 1–20): 300 V DC or rms, 1 A switched, 60 W, 125 VA
maximum.
Safety Category CAT 1
Contact Life (typ.) >10
5
operations at max. signal level;
>10
8
operations no load
1
.
1. Minimum signal level 10 mV, 10 μA.
Contact Resistance <1 Ω at end of contact life.
Contact Potential <±2 μV typical per contact, 3 μV max.
Offset Current <100 pA.
Connector Type Screw terminal, #22 AWG wire size.
Isolation Between Any Two Terminals: >10
9
Ω, <100 pF.
Isolation Between Any Terminal and Earth: >10
9
Ω, <200 pF.
Cross Talk (10MHz, 50 Ω Load): <–35 dB.
Insertion Loss (50 Ω Source, 50 Ω Load)
<0.1 dB below 1 MHz. <3 dB below 2 MHz.
Common Mode Voltage: 300 V between any terminal and chassis.
Digital Output (Channels 21 and 22)
V
out
(L) <0.8 V @ I
out
= 400 mA.
V
out
(H) >2.4 V @ I
out
= 1 mA.
V
out
(H)Max. <42 V with external open drain pull-up.
Write Speed 50/s.
Analog Voltage Output (Channels 23 and 24)
DAC 1, 2 ±12 V @ 1 mA max, non-isolated, ±10 V @5 mA max.
Resolution 1 mV.
I
out
5 mA max.
Settling Time 1 ms to 0.01% of output.
Accuracy ±(% of output + mV) 1 year ±5°C: 0.15% + 19 mV;
90 day ±5°C: 0.1% + 19 mV;
24 hour ±1°C: 0.04% + 19 mV.
Temperature Coefficient: ±(0.015% + 1 mV)/°C.
Write Speed 50/s.
Totalize Input (Channel 25)
Maximum Count 232–1.
Totalize Input 100 kHz (max), rising or falling edge, programmable.
Signal Level 1 Vp-p (min), 42 Vpk (max).
Threshold 0 V or TTL, jumper selectable.
Gate Input TTL-Hi, TTL-Lo, or none.
Count Reset Manual or Read+Reset.
Read Speed 50/s.
General
20 Channels 20 channels of 2-pole relay input. All channels configurable to
4-pole.
Relay Type Latching electromechanical.
Actuation Time <3 ms.
Environmental Operating Environment: Specified for 0° to 50°C. Specified to
80% R.H. at 35°C.
Storage Environment: –25° to 65°C.
EMC: Conforms to European Union EMC Directive.
Safety: Conforms to European Union Low Voltage Directive
RoHS: Conforms to European Union RoHS Directive
Warranty: 1 year
Weight 0.5 kg (1.1 lbs).
Supplied Accessories
CC-92-1 Set of 20 Cable Ties
TL-23 Screwdriver
Available Services
7706-3Y-EW 1-year factory warranty extended to 3 years from date of shipment
Ordering Information
7706 All-in-One I/O Module