1791D-8B8P 1791D8B8P Allen Bradley AB CompactBlock I/O Module
⇒ Click here for good price 1791D-8B8P
| Brand/Manufacturer | AB/USA |
| Part Number | 1791D-8B8P |
| Alternate Part Number | 1791D-8B8P |
| Description | MOTOR SERVO |
| Dimennsions | 15.2 cm x 6.3 cm x 5.1 cm |
| Weight | 0.2 kg |
Product Details
The 1791D-8B8P is manufactured by Allen Bradley, Rockwell
Automation. It is a CompactBlock I/O module containing a built-in
power supply, a DeviceNet I/O adapter and various I/O circuits. It
belongs to the 1791D CompactBlock family of devices and is a base
module containing 8 sinking inputs and 8 sourcing outputs. The size
of the device enables it to be used in a close range of any sensor
or actuator in a constrained space with many distributed I/O
blocks. The 1791D-8B8P features a built-in 10 to 30 Volt DC power
source that helps the device adapt to a broad range of power
supplies and voltage levels from the network and a NEMA Type 1+
input that allows the device to be compatible to different sensors.
A communication rate of maximum 500 Kbps is achievable up to a
distance of 100 meters using this device, and to protect against
accidental incorrect wiring, a feature is provided to prevent the
output from short-circuiting. To prevent the module from crashing
due to wrong baud rates, an automatic baud detection system is also
provided. Because of how compact this device is, it could be used
close up to an actuator or a sensor, which also lowers the cost of
wiring. Any master PLC, SLC, or SoftLogix Controller can be
connected via this device. In such a master/slave condition, this
device acts as a slave.
Being highly compact in nature, no additional power supply or
adapter is required for this device. However, for the inputs and
outputs, use an independent 24 Volt DC supply. Options are
available in the device to choose between three different
communications modes, which are polled, cyclic and change-of-state.
This I/O module could be mounted both vertically and horizontally
on either a DIN rail or an enclosed panel; however, the user should
ensure that the operating temperatures remain between 0 and 60
degrees Celsius. For this module’s wire connections, use 14 gauge
stranded wire which has an insulation of at least 3.64 inches.
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