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| Bi-DIRECTIONAL RS-232
INTERFACE |
* Network up to 100 pumps from a single communications port on a computer. Baud rates up to 19200.
* Directly control one or more pumps from a computer, including setting the pumping rate, direction and volume. Set the operational and setup configurations. Also the TTL interface can be queried and the programmable output set.
* Using a computer, each pump in the pump network can be individually controlled and monitored. Or, the computer can download a new pumping program to each pump which would automatically reconfigure the dispensing system for a new job.
* Downloading control programs to the pump would unload computer overhead to the pump. Computer resources could then be used elsewhere while the pumps operate independently.
* 2 MODES OF COMMUNICATIONS: BASIC AND SAFE
* BASIC: Basic master-slave interface. Easy to implement. Can communicate from any terminal emulator.
* SAFE: A reliable interface for a REAL- WORLD environment.
* High quality interface which detects communication errors via a 16 bit CCITT CRC.
* The pump will automatically transmit an alarm packet when a pump alarm occurs. For instance, if the pump stalls or resets, a message is immediately sent to the computer.
* A configurable communications time-out will stop the pump and alarm if the communications link is broken.
* Packet inter-character time-out to recover packet synchronization after communication glitches.
* Software Developer friendly communications protocol.
* Consistent and well defined communications packets.
* Constant start and end characters.
* Packets structured to be easily parsed.
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