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Upgrading Existing Series 500 Installations
D-3
TI545/TI555 System Manual
D.2
Upgrading a TI520/TI520C/TI530/TI530C/TI530T System
To upgrade a TI520, TI520C, TI530, TI530C, or TI530T system to the
TI545/TI555 you must install a twin axial (RS-485) remote I/O channel to
connect the Series 500 bases to the TI545/TI555.
You must also convert each of the existing series 500 bases to a series 500
remote base by replacing the existing programmable controller (and I/O
channel controller, if present) or the existing distributed base controller
with a PPX:500–5114A (RS-485) Remote Base Controller (RBC). If the base
contains a TI520, TI530, or a PPX:500–2103 distributed base controller you
must install an adapter base and modular power supply before you can
install the RBC in the Series 500 base.
Consider these points as you do the upgrade:
•
The Series 500 physical base assembly is composed of one or two logical
bases. A logical base is defined as a contiguous group of eight I/O slots.
For example, the 16-slot physical base assembly has two 8-slot logical
bases. Each logical base has a unique base address.
By comparison, the TI545/TI555 remote base assembly addresses up to
16 contiguous slots with a single base address.
•
To reduce down time for your process, plan to install the new RS-485
twin axial cables for the I/O trunkline before upgrading the hardware
for each I/O base.
•
Update time for a special function module is significantly faster when
you install the module in the local base, versus a remote base. Because
the TI545/TI555 is installed in a Series 505 local base, Series 500 SF
modules cannot be located in the TI545/TI555 local base. Therefore, if
SF module updates are critical to your application, consider 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 Dual Comm
Port (DCP) modules, in a remote base. Place high-activity modules,
such as the NIM or Peerlink, in the local base.
To do an upgrade, refer to Figure D-1 and follow the procedure below.
Refer to Chapter 4 “Cabling and Wiring the System,” for information about
installing RS-485 twin axial cabling for the I/O trunk line. To reduce the
down time for your process, install the cabling before installing new
hardware in each I/O base.
Install RS-485 Twin
Axial Cabling