Chapter 1 Ciu Emulation - Honeywell CIU 888 Protocol Manual

CHAPTER 1 CIU EMULATION

NOTE: CIU emulation can be configured for only one host port when using Ensite Pro.
NOTE: Refer to the Configuration Manual CIU 888 (Part No. 4417584) for more
Part No.: 4417589_Rev13
CIU Emulation
CIU 888 has 2 fixed serial host ports and upto 4 field cards can be
converted as host ports resulting in a maximum of 6 host ports.
Maximum of 4 of these 6 host ports can be configured for emulation of
the CIU protocol (compatible with the CIU 858) to provide backward
compatibility with earlier generations in Honeywell's series of CIUs (i.e.
CIU 880 Prime and Plus, CIU 858, SmartLink).
Using CIU emulation, external clients (i.e. host systems) connected to
the CIU 888 can communicate with the devices connected to the CIU
888 field port via the CIU 888. This communication involves GPU
protocol on serial (RS-232/RS-485) instead of the default protocol used
for host communication (i.e. Modbus protocol). Examples of external
clients are Entis XL, Profiles, etc.
For CIU Emulation, perform the following configurations:
- Configure host port for CIU Emulation (see section 1.1)
- Configure field port communication settings.
information about the configuration of the field port communication settings.
Protocol Manual - CIU Emulation
CIU 888 1 - 1