AB 1746-NO4I , 0 To +20 MA , SLC 500 Analog Output Module
Technical Specifications for 1746-NO4I
Manufacturer | Rockwell Automation |
Brand | AB |
Part Number/Catalog No. | 1746-NO4I |
Series | SLC 500 |
Module Type | Analog Output Module |
Backplane Current (5 Volts) | 55 milliamps |
Outputs | Four (4) |
Backplane Current (24 Volts DC) | 195 milliamps |
Output Current range | 0 to +20 mA |
Full Scale Output | 21 mA |
Overrange Capability | 5% (0 to +21 mA - 1 LSB) |
Current Output Coding | 0 to +32764 |
Update Time | 512 microseconds |
Backplane Current | (5 Volts) 55 milliamps; (24 Volts DC) 195 milliamps |
Resolution | 14 bits |
Resolution | 14 bits |
Step Response | 2.5 milliseconds |
Step Response | 2.5 milliseconds |
UPC | 10662073735912 |
Ambient Operating Temperature | 0 to 60 degrees Celsius |
About 1746-NO4I
The AB 1746-NO4I module is a Programmable Logic Controller (PLC)
analog output module that belongs to the SLC 500 product platform.
This module is used with the mentioned platform and compatible with
the Two (2) controller variant such as fixed hardware of modular
hardware style.
This module is capable of producing an output Current range of 0 to
20 mA that may be used to drive modulating instruments and devices.
Typical analog outputs are connected to a controller’s control
command. If used with a Proportional-Integral-Derivative
controller, the analog output is assigned to represent the Control
Output (CO) of the PID controller. For manual loading stations, the
analog output represents the manual command entered by the
operator. It may also be used to re-transmit an important signal to
a single or multiple device. This may be for the purposes of
indication, data logging and signal conversion.
The module is entered from the hardware configuration of the
RSLogix 500 programming software. The appropriate signal is
assigned by modifying the module properties. This module is also
installed with an embedded selector switch to allow selection of
power supply source. Internal power supply may be selected which
means that the module will utilize the supply from the backplane
while external source refers to an external power supply with
specification of 24 ±10% at 195 mA max.
The AB 1746-NO4I is an SLC 500 Four (4) channel analog output
module using a 16-bit 2’s complementary binary format. It has 4
current outputs that have an output range of 0 to +20 mA with
full-scale current output of 21 mA. The backplane current draw of
this module is 55 mA at 5 VDC while and 195 mA at 24 VDC while the
over range capacity is 5% (0 to 21 mA and 1 LSB). Its power supply
voltage rating is 24 Volts DC +/- 10% at 195 mA maximum and the
backplane isolation is 500 Volts DC. Note that some applications
require 21.6 to 26.4 Volts DC power when there is not enough power
flowing from the SLC power supply.
The 1746-NO4I also comes with an update response time of 512 µs for
all the channels that are in parallel. The input step response of
this module is 2.5 milliseconds at 95%. Its operating temperature
is 0 to 60 degrees Celsius; Storage temperature is -40 to 85
degrees Celsius, and its non-condensing ambient relative humidity
is 5 to 95%. This factory-calibrated output module has an open
enclosure and it is only compatible with the 1746 chassis. An LED
status indicator is also present in this module. The 1746-NO4I has
a load range of 0 to 500 ohms and maximum load reactance of 100 µH,
with a converter resolution of 14 bits via the R-2R Ladder
conversion method. The 1746-NO4I’s maximum overall accuracy drift
is +/- 70 ppm/ degree Celsius of the full-scale accuracy.
When wiring this module, use shielded communication cable such as
Belden 8761 or equivalent with lengths kept as short as possible.
For wiring convenience, the module is provide with a removable
terminal for simplified wiring and ease when replacing the module.