Series 8 I/O And C300 Topology - Honeywell Series 8 I/O User Manual

I/O module/IOTA
Digital Output 24Vdc
TC/RTD
Digital Input Pulse
Accumulation module
2.3

Series 8 I/O and C300 topology

Series 8 I/O is attached to an IOLINK that is being mastered by a C300 controller. It is
important to note that the IOLINK serves as data repository for IOM function blocks in
Control Builder to provide communications interface with Series 8 I/O.
R500
April 2017
Feature/function

Extensive self-diagnostics

Functional redundancy

Output direct/reverse

Safe-state (FAILOPT) behaviors

Each channel can be configured to HOLD LAST
VALUE, or SHED to a SAFE VALUE.

Fuse-less short circuit protection allows a short circuit to
exist without blowing any fuses. When a particular
channel is shorted, internal circuits detect this and remove
power to the field connection. The channel remains de-
energized until the short circuit is repaired.

Latched, pulsed or pulse-width modulated output

Galvanic isolation

Output read back checking to screw terminal

TC and RTD operation

Remote cold junction capability

1 sec PV scanning with OTD protection

Configurable OTD protection (See below)

Temperature points can be added in 16 point increments

Extensive self-diagnostics

IOM redundancy

Input direct/reverse for Digital Input channels

Internal or external field power selections

Galvanic isolation

PV processing or Pulse Accumulation functionality based
on the user configuration.
Series 8 I/O User's Guide
Honeywell
2. Series 8 I/O Planning and Design
2.3. Series 8 I/O and C300 topology
27