Ransburg DynaFlow User Manual - Manual (Page 90)

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DynaFlow TM User Manual - Maintenance
SERIAL COMMUNICATION
PROTOCOLS
Allen-Bradley RIO
The Interface Module allows for direct commu-
nication from an Allen-Bradley PLC Remote Input/
Output (RIO) port to the DynaFlow Fluid Flow
Control system. The RIO interface portion of the
Interface Module contains some Allen-Bradley
components that are licensed to Ransburg. These
are designed specifically to communicate with the
proprietary protocol of the RIO serial link. The
central component being an application specific
IC (ASIC) which is capable of formatting the RIO
information for use by the central processor (CPU).
Up to four Channel Modules (8 flow control CHAN-
NELs) can be controlled with the Interface Module.
The Interface Module and four Channel Modules
constitute half of a standard 19" rack. In terms of
RIO rack size, a full rack consists of 8
I/O groups. The Interface Module is one I/O
group, but only uses the high byte of the group.
Each Channel Module is one I/O group with the
first CHANNEL in the low byte and the second
CHANNEL in the high byte. A RIO 1/4 rack is 2
I/O groups, which consists of the Interface Mod-
ule and only one (1) Channel Module. A RIO 1/2
rack is 4 I/O groups, which may consist of the
Interface Module and from one (1) to three (3)
Channel Modules. A RIO 3/4 rack is 6 I/O groups,
which may consist of the Interface Module and
from one (1) to four (4) Channel Modules. A RIO
full rack is 8 I/O groups, which may consist of
the Interface Module and from one (1) to four (4)
Channel Modules.
The Interface Module accepts both hard-wired
discrete I/O and RIO discrete and RIO block
transfers from a PLC.
Reference the "DynaFlow Program-
mers's Manual" for more information.
NOTE
NOTES