Description OF 1746-BAS
The 1746-BAS is a single slot module used in SLC 500 modular or
fixed style hardware. This module is a Basic Language Module used
for interfacing with Human Machine Interface (HMI), printers,
modems and other devices for implementing machine level data
collection and integration,
The 1746-BAS module features communications ports such as PRT1,
PRT2 and DH485 communication interfaces. PRT 1 is exclusive used
for interfacing the BAS module to user devices via transmission
speeds of 300, 600, 1200, 2400, 4800, 9600 and 19200 Baud Rate in
full duplex mode. This port may be configured for RS232,423 / 422,
485 modes. PRT 2 may also be used with user devices and also for
interfacing modem using DF1 protocol. It is also capable of RS232 /
423, RS422 / 485 communication modes with same Baud Rates as PRT1.
The DH485 communication terminal is used for DH485 network. It is a
non-isolated port and requires the use of 1747-AIC to connect the
port to DH485 network. It is important to remember that when PRT2
is configured as DF1 or used for interfacing to a modem, the DH485
communication port is disabled.
The Allen Bradley 1746-BAS is a Basic Language Module of the SLC
500 system. It enhances the capability of any SLC 500 system by
adding report generation and data collection. It can be connected
to modems, printers, operator interface terminals and other
external devices through two configurable channels. The 1746-BAS-T
module is an identical higher-speed version of this module with
different optional memory modules. The 1746-BAS module has a memory
size of 24 KB with battery-backed RAM. It has a power supply
loading function of 0.150 at 5 Volts DC and 0.040 at 24 Volts DC.
For communication, it uses RS-232/423, RS-422, RS-485 and DH-485
ports with a maximum communication distance of 1230 meters.
It has a standard data transfer rate of 8 input words and 8 output
words for SLC 5/01 processors and higher. The 1746-BAS module
provides easy data collection and an integrated program debugging
environment. It has flexible data storage options with an operator
interface capability. Its user interface provides easy access to
editor functions and has a high-level programming environment;
additionally, the 1746-BAS provides extensive online help to the
user. It has other features like clock, calendar, advanced text
editor, and 8 LED indicators for module diagnostics and operator
interface, among others. It has a NEMA standard noise immunity and
0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) of operating
temperature.
Technical specifications for 1746-BAS
| Manufacturer | Rockwell Automation |
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| Brand | Allen-Bradley |
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| Part Number/Catalog No. | 1746-BAS |
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| Series | SLC 500 |
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| Module Type | SLC BASIC Module |
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| Communication Ports | PRT1:RS-232/423, -422, -485, PRT2:RS-232/423, -422, -485; DF1
PRT3:DH485 |
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| Backplane Current (5 Volts) | 150 milliamps |
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| Indicators | ACT; 485; PRT1; PRT2; FAULT; BAT LOW; LED 1; LED 2 |
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| Backplane Current (24 Volts) | 40 milliamps |
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| Noise Immunity | Standard NEMA |
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| Operating Temperature | 32 to 140 degrees Fahrenheit |
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| Communication | RS-232/423, RS-422, RS-485, DH-485 |
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| Memory | 24 KB, RAM |
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| UPC | 10662468250037 |
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| Clock/Calendar Accuracy | ±1 minute/month at 25 °C (77 °F) +0, -6 minute/month at 60 °C (140
°F) |
|---|
| Vibration | Displacement: 0.015 in., peak-to-peak at 5...57 Hz Acceleration:
2.5 g at 57...2000 Hz |
|---|
| Operating Shock | 30 g |
|---|
The Allen-Bradley 1746-BAS is a SLC 500 SLC BASIC Module. This SLC
BASIC Module has RS-232/423, -422, -485, and DH-485 Communication
Ports for connection to modems, printers, Human Machine Interface
and other devices. It also has a 24KB battery backed-up RAM and for
data and user program storage
