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Upgrading Existing Series 500 Installations

C-10

SIMATIC 545/555/575 System Manual

Upgrading an RF-Based 560/560T/565/565P System (continued)

To upgrade an existing 560, 560T, 565, or 565P system to a 575 system, you

need to replace the existing programmable controller, including its chassis,

power supply and all installed boards, with the VMEbus base, power supply,

and 575 CPU. You must also install a Series 505 base with an RS-485/RF

I/O channel converter (PPX:505–6860) within three feet of the VMEbus

base, and ensure that the bases are electrically bonded (i.e., connected by a

grounding strap). The upgrade is shown graphically in Figure C-4.

NOTE: The 575 cannot directly replace a hot backup (HBU) configuration.

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

coaxial (RF) remote I/O channel, combine these channels into a single

remote I/O channel. Refer to the chapter entitled “Cabling and Wiring

the System,” in the SIMATIC 560T/565T System Manual, for

information about installation of a coaxial remote I/O channel.

If the existing Series 500 system has more than 15 bases, multiple

VME 575 CPUs, each with its own I/O channel, can be used. However,

significant program modifications may be necessary in order to divide

the 565 program and redistribute the program among multiple 575

CPUs. Another option is to rewire, using a PROFIBUS-DP channel

with up to 112 master and slave devices.

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. Move jumper E8 on the 575–2126 annex card from the “U” position to

the “T” position. This ensures that the I/O channel data lines are

properly terminated.

5. Install a Series 505 base with power supply and PPX:505–6860

converter, as described in Section C.6.

6. Connect the RS-485 I/O port on the 575 CPU to the RS-485 I/O port on

the PPX:505–6860 converter, and ensure that the VMEbus base is

electrically bonded to the Series 505 base, as described in Section C.6.

7. Connect the RF (coaxial) cable of the Series 500 I/O channel to the

PPX:505–6860 port that is labeled RF To I/O BASES. (See Section C.6.)

Upgrading an

RF-based System

to 575

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