Automation Direct Do-more H2 PLC Series, Руководство пользователя по оборудованию

Страница: 131 / 242

Do-more H2 Series PLC User Manual, 1st Edition, Rev. F - H2-DM-M
6–27
Chapter 6: Specifications - Analog I/O Modules
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
F2-04THM - continued
The 2’s complement data format may be required to correctly display bipolar data on some
operator interfaces. This data format could also be used to simplify averaging a bipolar signal.
To view this data format in the Do-more software, select Native.
For unipolar thermocouple ranges (R,S,B,C), 2’s complement should be selected.
This module comes with both jumpers installed. For Fahrenheit remove Units-1 jumper.
For Celsius remove both Units-0 and Units-1 jumpers. Use the following table to select
temperature conversion unit.
The bipolar voltage input ranges,
±
5V or
±
156mV (see previous page for
±
5V and
±
156mV
input settings), is converted to a 16-bit 2’s complement value.
This module comes with both jumpers installed. Use the following table to select voltage
conversion unit. For Example, remove the Units-1 jumper and leave the Units-0 jumper
installed for 2’s complement conversion. For Fahrenheit remove Units-1 jumper. For Celsius
remove both Units-0 and Units-1 jumpers.
The Calibrate Enable jumper J9 comes from the factory in the “jumper removed” setting
(the jumper is installed over only one of the two pins). Installing this jumper disables the
thermocouple active burn-out detection circuitry, which enables you to attach a thermocouple
calibrator to the module. To make sure that the output of the thermocouple calibrator is
within the 5V common mode voltage range of the module, connect the negative side of the
differential voltage input channel to the 0V terminal, then connect the thermocouple calibrator
to the differential inputs (for example, Ch 3+ and Ch 3).
For the voltage input ranges, this jumper is inactive and can be installed or removed with no
effect on voltage input.
F2-04THM Module Jumper Table (Temperature Conversion Unit)
Temperature Conversion Units Units-0 Units-1
2’s Complement (
˚
F) Yes No
2’s Complement (
˚
C)
No
No
Yes = Jumper Installed No = Jumper Removed
F2-04THM Module Jumper Table (Voltage Conversion Unit)
Voltage Conversion Units Units-0 Units-1
2’s Complement
Yes
No
Yes = Jumper Installed No = Jumper Removed