KROHNE Summit 8800 Vol 1 - Manual (Page 50)

50 www.krohne.com 08/2013 - MA SUMMIT 8800 Vol1 R02 en
SUMMIT 8800 HARDWARE DETAILS 05
5 .7 .2 .3 RS485 Settings
Position of RS485 termination network links shown on left hand edge of analog I/O board
Link Function Factory
setting
4 RS485 termination network connection OFF
Figure 42 Analog I/O board RS485 termination link setting
Table 11 Serial settings on analog I/O board
5 .8 Switch I/O Board
The Switch Input Output board is a qualified personnel exchangeable plug in card, up to a maxi-
mum of 6 can be inserted in any of the user plug in slots in the SUMMIT 8800 chassis. It provides
switch input and output functions as follows:
• 3 Pulse counting/frequency measuring inputs for use with turbine /rotary meters and fre-
quency output density or relative density transducers.
• 3 Digital Status inputs for use with switch or contact inputs.
• 6 Digital transistor switch outputs for use in Telemetry systems or for alarm indication.
• 6 Digital I/O connections which can be set to Digital transistor switch outputs for use in Te-
lemetry systems or for alarm indication or Digital Status inputs for use with switch or contact
inputs.
• 1 Serial Communication Port using either RS232 or RS485 standards providing connection to
gas meters, gas chromatographs or other equipment that uses serial communication for data
transfer.
It is normally intended that each Switch I/O board provides additional switch inputs and outputs
over and above that required for an individual measurement Run, for example when used in a
prover configuration. However as the function of each individual switch input and output can be
separately configured, the use of any particular function is not limited to any particular function.