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5
5-5
GFK-0121E
Chapter 5 Monitoring the Bus and its Devices
Monitor Block Display for Discrete Relay
Output Blocks
For a Relay block, the Monitor Block screen shows
the current open (O) or closed (C) states of all
relay outputs:
REFS (blockreferences)O
123456789O123456
OOOOOOOOOOOOOOOO
OOOOCCOOOOOCOOCC
Line 2 shows the last digit of each circuit’s
reference address. The ‘O‘s on line 3 show that
each circuit is an output. Line 4 shows each relay
output’s present state. An underline means the
relay is forced.
O
= open
O
= forced open
C
= closed
C
= forced closed
Monitor Block Display for Analog Blocks
For an analog block, each Monitor Block screen
shows the current value of two circuits at a time.
This is an example display:
REFS(circuit references) A
I1: 18357
I2: 29O61 FRC
>
Line 1 indicates that the block is an (A)nalog block.
Lines 2 and 3 display the current values of two
circuits. On an analog block, each circuit may
report either unconverted analog data, or data
that has been scaled to be suitable for the
application.
The abbreviation FRC means a value is forced.
Press F1 ( > ) to display the next pair of circuits.
Monitor Block Display for RTD or
Thermocouple Blocks
For an RTD or Thermocouple Input block, the
Monitor Block screen shows the current values of
two inputs at a time. Values reported by the block
may be tenths of degrees (Celsius or Fahrenheit),
tenths of ohms, or unconverted counts. This is an
example display showing tenths of degrees
Celsius:
REFS(circuit references) A
I1: 15O.O C
I2: 25.5 C
Line 1 indicates that the block is an (A)nalog block.
Lines 2 and 3 display the input values. The
abbreviation FRC means a value is forced.
Press F1 ( > ) to display the next pair of inputs.