Delta RMC101 User Manual download pdf (Page 459)

100

101

PROFIBUS-DP 5.4

Communications 5-209

Compact Mode keeps the number of words sent over the PROFIBUS to a minimum. This is

desirable to keep network traffic down and more importantly to keep the number of registers

required in the PLC or PC to a minimum. Compact mode requires only two words in and out per

axis, plus, optionally, one additional synchronization word in and out.

Note: Compact Mode without Sync requires RMC CPU firmware dated 19990916 or later (or

RMC beta firmware dated 19990727B or later) and GSD file (DELT1630.GSD) version 1.3 or

newer.

Message Mode is intended for systems that can support a large amount of data being sent over

the PROFIBUS and in which the master computer can have 96 input words and 64 output words

reserved for every RMC module. If the system can support these requirements, the Message

Mode gives constant access to up to 32 words of status information, and can write up to 59 words

or read up to 63 words with a single command.

For more information on these two commands, select one of the following topics:

Note: Message Mode requires RMC CPU firmware dated 19990625 or later (or RMC beta

firmware dated 19990412B or later) and GSD file (DELT1630.GSD) version 1.2 or newer.

• Using the PROFIBUS-DP Compact Mode

• Using the PROFIBUS-DP Message Mode

PROFIBUS-DP Configuration

There is very little to be done to configure the RMC to communicate on the PROFIBUS network.

In fact, the only thing to do is set the Station Address. However, you must also add the RMC as a

device to the master’s configuration. This is more difficult to do and the exact steps vary for each

master. Refer to PROFIBUS Configuration for instructions on setting the Station Address and

guidelines for adding the RMC as a device to the network configuration.

5.4.2 PROFIBUS Configuration

The following steps are required to connect an RMC unit to a PROFIBUS network. Each is

described below:

• Set the RMC’s Station Address

The RMC requires a station address to be selected.

• Determine the Appropriate GSD Configuration Module

The RMC’s GSD file has a number of configuration modules; only one may be selected.

However, it is vital that the correct configuration module be selected for a given RMC unit.

• Configure the PROFIBUS Network

The master device requires knowledge of all slave devices on the network and the configuration

of each slave device.

Setting the RMC’s Station Address

The steps above set the station addresses as expected by the master; this step sets the station

address that the RMC unit actually responds to. Both must be set to the same value for the same

unit. The RMC100 can use any station address between 0 and 126; the address is saved in the

1 2 ... 454 455 456 457 458 459 460 461 462 463 464 ... 950 951

Comments to this Manuals

No comments

Delta RMC101 User Manual Page 459

Comments to this Manuals

Related products and manuals for Sensors Delta RMC101