Upgrading Existing Series 500 Installations
D-8
TI545/TI555 System Manual
D.4
Upgrading an RF Based TI560/TI565/TI560T/TI565P System
To upgrade an existing RF based TI560, TI560T, TI565, TI565P system,
replace the existing programmable controller, including its chassis, power
supply and all installed boards with the TI505 base, power supply,
TI545/TI555 controller, and RF/RS-485 converter. The upgrade is shown
graphically in Figure D-3.
NOTE:
Note that the TI545/TI555 cannot directly replace an 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 your existing controller’s documentation
for information about installation of a coaxial remote I/O channel.
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 resulting I/O channel to the TI545/TI555 system using the
PPX:505–6860 RF to RS-485 converter.
Update time for a special function module is significantly faster when you
install the module in the local base, versus a remote base. 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
TI545/TI555 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.