2
×
uLan connectors
these connectors allows to interconnect/daisy-chain multiple devices
togeter, allows use device as interface to control other uLan equipped HPLC in-
struments etc. Binder 719 series connectors are used (09 9765 2004 on ULAD 31,
09 9764 7004 on cable)
1. not connected or optional ground (GND)
2. D- connected to the cable inner wire
3. not connected or optional power supply (VCC)
4. D+ connected to the cable shielding
1
4
3
2
1
2
4
3
Screw terminal connector
analog input terminals and digital configurable input/output
signals
Terminal
Signal
description
1
IN1+
Analog positive signal input
2
IN1-
Analog negative/reference/ground signal input
3
IN2+
Auxiliary analog input positive terminal
4
IN2-
Auxiliary analog input negative terminal
5
GND
Prefered use use analog input ground or shielding
6
I/O3
Digital signal 3 used for input or output
7
I/O2
Digital signal 2
8
I/O1
Digital signal 1
9
I/O0
Digital signal 0 (MARK input for default configuration)
10
GND
Ground terminal for digital inputs and outputs
3
Control and Communication over uLan RS-485 Line
3.1
Accessible Dictionary Variables
3.1.1
Actual AD Converter Input Voltage Values
The ULAD converters provide single or multiple channels providing converted digital value
for input analog signal. The channels are labeled CHA, CHB etc. The CH
X
label is used
for any of the channels. As for ULAD31 there is only one continually sampled channel -
channel CHA.
Name
R/W
Type
Function
CHA
R
f4
Actual value of A channel input
CHAi
R
s2 (/.3)
Channel A as fixed value (unit 10
−
3
)
ADCAl
R
s4
Raw A channel ADC value
3