A-B 1746-BAS-T module
A-B 1746-BAS-T module
Description
The 1746-BAS-T module is a higher-speed version of the 1746-BAS module with identical hardware features. The modules can be interchanged, except that the 1746-BAS-T module uses different (optional) memory modules. Due to the high speed of the 1746-BAS-T module, existing programs written for the 1746-BAS module may require adjustment for identical operation using the faster 1746-BAS-T module.
Benefits:
• Easy data collection from user devices
• Integrated program debugging environment
• Operator interface capabilities
• Flexible program and data storage options
• High-level math • Clock/calendar
• High-level programming environment
• Extensive online help system
• Easy access to editor functions through user interface
• Advanced text editor windows
The module provides the following hardware features:
• 24 KB of battery backed RAM for storage of user programs and data
• Capacitive backup of RAM during battery change
• Socket for a standard 1747-M1, M2, M3, or M4 memory module (1746-BAS module) for nonvolatile storage of user programs
• Socket for a 1771-DBMEM1 or -DBMEM2 memory module (1746-BAS-T module) for nonvolatile storage of user programs
• Battery-backed, 24-hour clock/calendar
• Free-running clock with 5 ms resolution
• Two isolated 9-pin D-shell serial ports (PRT1 and PRT2) that provide RS-232/423, RS-422, and RS-485 communication with I/O devices
• One PRT2 port provides DF1 full-duplex or half-duplex slave protocol for SCADA applications
• One RJ-45 port (DH485) that provides communication over the DH485 network
• Multiple LED indicators for operator interface
• SLC 500 backplane interface
The module provides the following software features:
• BASIC programming with the Intel BASIC-52 language and enhancements
• SLC 500 backplane data read and write support including image table transfers and M0 and M1 file transfers
• Execution of programs from memory modules
• String manipulation support
• DH485 network support
• DF1 protocol support
• Full set of trigonometric function instructions
• Floating point calculations and conversion
• Extensive call libraries
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