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UD70/MD29 Installation Guide

10

Issue Number: 3

www.controltechniques.com

3.2

Data Rate

Unidrive:

#17.07

Mentor II:

#14.03

Range:

300 to 38400 bits per second

Default:

4800

Every node on an ANSI or Modbus network must be configured to operate at the
same data rate. Set the appropraite value as shown in the table below to configure
the RS485 port data rate.

3.3

RS485 Port Communications Modes

Unidrive:

#17.06

Mentor II:

#14.02

The serial communications mode selector determines the mode of operation of the
RS485 serial port, and the protocol supported. Only slave modes are described
here. (Modes 6 to 9, 11 and 12 require DPL code to control the RS485.)

3.3.1

Standard CT ANSI Protocol

Mode 1 - 4 Wire ANSI Slave Mode (Default)

Mode 5 - 2 Wire ANSI Slave Mode

The UD70 and MD29 will communicate using the Control Techniques' standard
ANSI protocol with a 4-wire or 2-wire connection. This mode allows the Unidrive or
Mentor II to communicate with standard CT software packages, such as UniSoft,
MentorSoft, SystemWise, etc.

Menu 0 parameters are not accessible through a UD70 or MD29. Refer to the
User's Guide for MD29 or UD70 for a detailed description of the ANSI protocol.

3.3.2

Modbus RTU

Mode 13 - 4 Wire Modbus RTU Slave Mode

Mode 15 - 2 Wire Modbus RTU Slave Mode

The UD70 and MD29 will communicate using the Modicon Modbus RTU protocol
with a 4-wire or 2-wire connection. The data frame used for Modbus RTU is 1 start
bit, 8 data bits, no parity, 2 stop bits. (Even parity with 1 stop bit is NOT currently
supported.)

The following MOdbus RTU commands are supported:

FC3

PRESET SINGLE REGISTER

FC6

PRESET MULTIPLE REGISTERS

FC16

READ MULTIPLE REGISTERS

The maximum number of registers that can be transferred on a single message is
limited to 20, and the range of allowed node addresses is limited from 1 to 99.

Data Rate

(bits/sec)

Unidrive

Mentor II

300

300

3

600

600

6

1200

1200

12

2400

2400

24

4800

4800

48

9600

9600

96

19200

19200

192

38400

38400

38

Содержание MD29

Страница 1: ...www controltechniques com www controltechniques com EF Installation Guide UD70 MD29 Second Processor Options for Unidrive and Mentor II Part Number 0460 0098 Issue Number 3 ...

Страница 2: ...mage loss or injury a risk analysis must be carried out and where necessary further measures taken to reduce the risk To ensure mechanical safety additional safety devices such as electro mechanical interlocks may be required The Drive must not be used in a safety critical application without additional high integrity protection against hazards arising from a malfunction General Information The ma...

Страница 3: ... MD29 MD29AN 3 2 Electrical Installation 5 2 1 UD70 5 2 2 MD29 5 2 3 MD29AN 6 2 4 RS232 Port Connections 6 2 5 RS485 Port Connections 6 2 6 I O Box Port Connections MD29 Only 8 2 7 Digital I O Connections 8 3 RS485 Port Configuration 9 3 1 Node Address 9 3 2 Data Rate 10 3 3 RS485 Port Communications Modes 10 3 4 Storing configuration parameters 12 ...

Страница 4: ...s or cards ensure that the Unidrive or Mentor II is switched off AC Drives should be left for 5 minutes to ensure that the DC link capacitors have completely discharged 1 1 Unidrive and UD70 Slide the UD70 module under the display panel of the Unidrive and push the module in until the connector locates with the plug inside the Unidrive NOTE ...

Страница 5: ...m pressure and the module will click securely into place To remove the UD70 pull firmly on the black tab and the module will disengage from the connector Do not attempt to remove the UD70 module while the Unidrive is still powered up as this may cause damage to the Unidrive WARNING ...

Страница 6: ...ber 3 1 2 Mentor II and MD29 MD29AN The MD29 is fitted onto the 40 way pin header PL1 on the MDA2B circuit board The supplied mounting pillars should be attached to the MDA2B on the Mentor II Tilt the MD29 at an angle and locate the first few pins into the MD29 header ...

Страница 7: ...e board onto this connector do not force it on Excessive force may bend and break the pins of the header When removing an MD29 unsnap the MD29 from the pillars before gently working the MD29 off the header Do not tilt the MD29 excessively to one side as this may bend and break the end groups of pins on the header Do not attempt to remove the MD29 while the Mentor II is still powered up as this may...

Страница 8: ...provide the connectors for high speed fieldbus communication options if fitted Refer to the appropriate fieldbus option User Guide for full fieldbus connection details 2 2 MD29 The MD29 provides a dedicated RS232 programming port Connector SK2 and a general purpose RS485 communications port Connector PL1 In addition the MD29 also has a dedicated RS485 port Connector TB1 for use with the Control Te...

Страница 9: ...table below The RS232 port can be connected to a 9 way serial port using a 9 way one to one ribbon cable lead 2 5 RS485 Port Connections The pin connections for the RS485 port are given in the table below 0VSC is completely isolated from the main Unidrive and Mentor II 0V MD29AN PL1 SK2 PL2 SK1 Pin Function Description 2 TxD Transmit line 3 RxD Receive line 5 0V 0V Pin Function Description 1 0VSC ...

Страница 10: ... the network An RS232 to RS485 converter with intelligent transceiver switching also known as magic RS485 converters is required to allow a standard PC serial port to communicate with a 2 wire RS485 network An example of a magic converter is the MA485F converter from Amplicon A magic converter is not required is the master contoller has an RTS control output This output is enabled when the master ...

Страница 11: ...cuit or connected to 5V this will be read by 86 01 input 0 or 86 02 input 1 as logic 0 These parameters will change to logic 1 when the inputs are connected to 0V Digital on pin 9 The digital output will give 5V when 86 03 is set to logic 0 and 0V when set to logic 1 The digital output is rated to a maximum of 15mA The maximum length of cable that should be connected to these terminals is 0 5 metr...

Страница 12: ...ored and the UD70 or MD29 is reset The following parameters used to configure the RS485 port 3 1 Node Address Unidrive 17 05 Mentor II 14 01 Range 11 to 99 excluding 00 to 09 10 20 30 40 etc for ANSI 1 to 99 for Modbus RTU and Modbus ASCII Default 11 Every node on an ANSI or Modbus network MUST be assigned a unique serial address Changes to the node address will not take effect until the parameter...

Страница 13: ...ion This mode allows the Unidrive or Mentor II to communicate with standard CT software packages such as UniSoft MentorSoft SystemWise etc Menu 0 parameters are not accessible through a UD70 or MD29 Refer to the User s Guide for MD29 or UD70 for a detailed description of the ANSI protocol 3 3 2 Modbus RTU Mode 13 4 Wire Modbus RTU Slave Mode Mode 15 2 Wire Modbus RTU Slave Mode The UD70 and MD29 w...

Страница 14: ...ave Mode 2 Master Mode Mode 3 Slave Mode In Mode 2 the node acts as a master and continuously broadcasts a source parameter as defined by the Pointer parameter from the RS485 port at a fixed data rate of 9600 bits sec The value of the source parameter is scaled to 16000 In Mode 3 the node acts as a slave to receive the continuous data stream transmitted by a Mode 2 master The incoming data is mult...

Страница 15: ...ctly with an I O Box by configuring the RS485 port to use Mode 10 communications 3 4 Storing configuration parameters In all cases the configuration parameters must be stored and the UD70 or MD29 reset before changes will take effect 3 4 1 Unidrive To store changes in menu 17 parameters set MM 00 to 1000 and press the red RESET button To reset the UD70 set MM 00 to 1070 and press the red RESET but...

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