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Upgrading Existing Series 500 Installations

C-6

SIMATIC 545/555/575 System Manual

C.3 Upgrading an RS-485-Based 560/560T/565/565P System

To upgrade an existing RS-485 based 560, 560T, 565, or 565P system,

replace the existing programmable controller, including its chassis, power

supply and all installed boards, either with a Series 505 base, power supply,

and CPU (545–1104, –1106, 555–1103, –1104, –1105, –1106), or else with a

VMEbus base, power supply, and one or more 575 CPUs (with 575–2126

annex card). The upgrade is shown graphically in Figure C-2.

NOTE: A 545/555/575 cannot directly replace a hot backup (HBU)

configuration.

1. If the Series 500 remote I/O installation consists of more than one

twin-axial (RS-485) remote I/O channel, combine these channels into a

single remote I/O channel. Refer to Chapter 6 for information about

installation of a twin axial remote I/O trunk line.

2. Renumber your bases so that no two bases have the same number and

so that base number 0 is not used.

3. Modify the controller’s I/O configuration to reflect the channel number

and base number changes.

4. Connect the I/O trunk line to the 545/555/575 remote I/O connector.

Update time for a special function module is significantly faster when you

install the module in the local base, versus a remote base. If you are

upgrading to a 545/555 system, you can improve SF module performance

and scan performance by replacing the Series 500 SF modules with Series

505 SF modules and installing them in the 545/555 local base.

If all SF modules cannot be installed in the local base, consider placing

low-activity SF modules, such as the ASCII, BASIC, or DCP modules, in a

remote base. Place high-activity modules, such as the NIM or Peerlink, in

the local base.

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Siemens SIMATIC TI500 Especificaciones Pagina 265