KROHNE Summit 8800 Vol 1 - Manual (Page 45)

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08/2013 - MA SUMMIT 8800 Vol1 R02 en
SUMMIT 8800 HARDWARE DETAILS 05
5 .6 Digital I/O Board 2
The digital I/O board 2 can only be exchanged by qualified personnel. Up to a maximum of 6
cards can be inserted in any of the 6 plug in slots in the SUMMIT 8800 chassis. A board can pro-
vide input and output functions as detailed:
• 3 pulse counting/frequency measuring inputs (for use with turbine meters, rotary meters,
density or relative density transducers).
• 1 Digital status inputs for use with switch or contact inputs.
• 2 Smart transmitter (HART) loops. Each loop can provide connections for up to 3 transmitters
each with four variables such as pressure, temperature or differential pressure transmitters.
• 6 digital transistor switched outputs for use in telemetry systems or for alarm indication.
• 4 analog 4-20 mA outputs for use in telemetry or control systems.
• 1 Serial communication port using either (RS232 or half duplex RS485), providing connection
to gas meters, gas chromatographs or other equipment that transfers data via serial commu-
nication.
NOTE: Only configure pulse output 1 for Prover corrected bus.
An individual stream (or run) can be monitored by one digital I/O board as it provides all the nec-
essary inputs and outputs. Note that individual inputs and outputs can be configured separately
and are not limited to a specific measurement run.
5 .6 .1 Digital /O Board 2 Terminal Connections
Figure 35 Digital I/O board 2 rear terminal pin allocation