5
Monitor Block Display for Discrete Relay OutputBlocks
For a Relay block, the Monitor Block screen shows the current open (O) or closed (C) states of all relay outputs:
R E F S (blockreferences)O 1 2 3 4 5 6 7 8 9 O 1 2 3 4 5 6 O O O O O O O O O O O O O O O O O O O O C C O O O O O C O O C C
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 | = | forcedclosed |
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:
R E F S (circuitreferences) A
I 1 : | 1 8 3 5 7 |
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I 2 : | 2 9 O 6 1 | F R C |
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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:
R E F S (circuitreferences) A
I 1 : 1 5 O . O C
I 2 : | 2 5 . 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.
Chapter 5 Monitoring the Bus and its Devices |
