Finish Upgrade With These Steps - Siemens SIMATIC TI555 System Manual

Series 500 Base is:
PPX:500–5848
(14 I/O Slots)
PPX:500–5884
(12 I/O Slots) or
PPX:500–5892
(6 I/O Slots)
Upgrade Path A
1 Remove controlling device: controller
(and IOCC, if present) or DBC.
2 If power supply is in slot B, move it to
slot A. This makes I/O slot #1 available
for an I/O module.
1 Install PPX:500–5114/A RBC.
2 Set base address(es).
Figure D-1 Upgrading a TI520/TI520C/TI530/TI530C/TI530T System
TI545/TI555 System Manual
Controlling Device is:
TI530C/TI530T (and IOCC if present)
TI520C or
PPX:500–2109 DBC

Finish upgrade with these steps:

P/S
Series 500 Base is:
PPX:500–5228
(16 I/O Slots) or
PPX:500–5864
(8 I/O Slots)
Upgrade Path B
1
Remove controlling device: controller
(and IOCC, if present) or DBC.
2
Install PPX:500–5840 Adapter Base.
3 Install PPX:500–2151A or
PPX:500–2153 Power Supply in slot A.
3 Connect twin axial cable to RBC port.
4 Configure I/O.
TI545
Series 505 I/O
or
4, 8, or 16 slots
TI555
Local I/O
Upgrading Existing Series 500 Installations
Controlling Device is:
TI530 (and IOCC if present)
TI520 or
PPX:500–2103 DBC
D-5