Local I/O; Remote I/O - Black & Decker d984 Installation Manual

Local I/O
All of the Controllers support one local I/O drop in the form of Modicon 800 series
module housings. Local I/O processing is always Drop #I Total Local I/O pro-
vides for Discrete points configured in any mix and registers, refer to Table 1 for
memory configuration for each individual Controller.
Remote I/O
The 480E/485E/485K Controllers have up to 6 drops (one local and five remote)
for a total I/O support capacity of 1024 discrete I/O points (any mix). The
480E/485E/485K also support up to 5 RI/O drops (using the built-in S908 Remote
I/O Processor and optional J89O/P890 RI/O Adapters) with a maximum of 512
more discrete I/O points on one drop or spread over them all. Also, the
480E/485E/485K support a maximum of 2 ASCII ports per drop, up to a total maxi-
mum of 12 using optional J892YP892 RI/O ASCII Adapters. Please refer to
GM-0984RIO Modicon Remote l/O Cable System Planning Guide for more de-
tails.
The 685El785El785DI785K require a separate RI/O Head module with a plug-in
executive cartridge capable of supporting either 16/31 RI/O drops. The 16 RI/O
drops (using the Executive Cartridge AS-Ego&01 6 on the S908) have
1 Kin/l Kout (I/O bits). It can also support 31 RI/O drops (using the Executive Car-
tridge AS-E908-131 on the S908) with each drop having a maximum of
512in/512out (I/O bits). While the total I/O capacity is 65536 bits, only the first 16K
can be I/O mapped regardless of which S908 executive cartridge is used, (local Ii
0 bits maximum is 1 Kin/l Kout). The S908 Remote I/O Processor comes in two
versions: a single cable (AS-S908-ll O), or dual cable (AS-S908-120). Please
refer to GM-0984RIO Modicon Remote I/O Cable System Planning Guide.
These controllers also support a maximum of 2 ASCII ports per drop up to a total
maximum of 32 using optional J892/P892 RI/O ASCII Adapters. Please refer to
GM-0984-RIO Modicon Remote I/O Cable System Planning Guide for more de-
tails. Figure 4 is a perspective view of the RIOP module.
The RI/O interface will drive RI/O up to 5000 feet away (this distance can be in-
creased depending upon the cable selection and certain other customer applica-
tion considerations). Since the 5000 foot distance allows wide latitudes in system
layout and installation, substantial economies can be realized from carefully
planned layouts. Another planning requirement is to keep attenuation losses within
the system' s 35 dB dynamic range.
GM-0984-EDK
introducing your Controller 9