6445-001-K-N motor drive

Description

6445-001-K-N motor drive

6445-001-K-N motor drive

Introduction

The serial port transmits and receives RS-232 or RS485-multidrop serial communication for the user interface of your unit. You can configure to control single or multiple 6445s.

Single- and multi-unit control

• For controlling a single 6445, use RS-232 communications. DIP switch S2 must be set to Address 31 for RS-232 Communications as described in Section 3.2.
• For controlling multiple 6445s, RS-422 or RS-485 communications permits a single PC to host from 1 to 31 6445s (each requiring a unique address ranging from 0 to 30, set using DIP switch S2 as described in Section 3.2).
• The 6445 utilizes 9600 baud communications with one start bit/one stop bit and eight bit word length in either RS-232 or multidrop format.
• For controlling a single 6445 from a T10 terminal, use RS-232 communications and install cabling as described in section 2.5.4.3, “J7 Serial Port – T10 Connection”.

RS-485/RS-422 Connections

Up to 31 6445s can be connected in parallel to a multidrop master. The 6445s must each have a unique address, set using DIP switch S2 as described in Section 3.2. RS-485/RS-422 connections to J7 are shown below. A multidrop interconnection diagram, showing multiple axes connected to a single host is also included.

This point is not intended as a comparison with DCS, but rather to illustrate the key issues that should be considered in the design and development of FCS for process control or simulation of continuous process classes.
1) The intrinsic safety explosion-proof function of the bus is required, and it is of paramount importance.
2) The changes in basic monitoring such as flow rate, material level, temperature, pressure, etc. are slow and have hysteresis effects. Therefore, node monitoring does not require fast electronic response time, but requires complex analog processing capabilities. This physical characteristic determines that the system generally adopts a centralized polling system between master and slave, which is technically reasonable and economically advantageous.
3) The physical principles of measuring parameters such as flow rate, material level, temperature, and pressure are classical, but sensors, transmitters, and controllers should develop towards digital intelligence.
4) As an FCS developed for continuous process and its instrumentation, it should focus on improving the design of the low speed bus H1.
We already know that some FCS was developed from PLC, while others were developed from DCS. So, today FCS has moved towards practicality, and what will be the future of PLC and DCS.

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