SMC Networks PF3A-H Series Manual page 5

Implement diagnostic bits in the process data.
The diagnostic bit in the cyclic process data makes it easy to find problems with the equipment.
It is possible to find problems with the equipment in real time using the cyclic (periodic)
data and to monitor such problems in detail with the noncyclic (aperiodic) data.
For the PF3A7 H-L
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Process Data
Bit offset Item
0 OUT1 output
1 OUT2 output
8 Flow rate diagnosis
14 Fixed output
15 Error (Failure)
16 to 31 Measured flow rate value
Bit offset 31 30 29
Item
Bit offset 15 14 13
Item Fixed output
Error
(Failure)
For the PF3A8 H-L
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Process Data
Bit offset Item
0 Accumulated flow SW1 0: OFF
1 Accumulated flow SW2 0: OFF
2 Flow rate SW1 0: OFF
3 Flow rate SW2 0: OFF
4 Temperature SW1 0: OFF
5 Temperature SW2 0: OFF
6 Pressure SW1 0: OFF
7 Pressure SW2 0: OFF
8 Flow rate unit 0: L
9 Flow rate criteria 0: STD
10 Flow rate diagnosis 0: Normal 1: HHH
Bit offset 95 94 93
Item
Bit offset 79 78 77
Item
Bit offset 63 62 61
Item
Bit offset 47 46 45
Item
Bit offset 31 30 29
Item
Bit offset 15 14 13
Item System error Error Fixed output Pressure diagnosis Temperature diagnosis Flow rate diagnosis Flow rate criteria Flow rate unit Pressure 2 Pressure 1 Temperature 2 Temperature 1 Flow rate 2 Flow rate 1 Accumulated flow 2 Accumulated flow 1
Application Example
Main line flow control
Can be used for the flow control, etc.,
of the main line and branch lines
The instantaneous flow, set value, and
accumulated value can be checked at
the same time.
Diagnosis items
Note
0: OFF 1: ON
· Over current error
0: OFF 1: ON
· Rated flow error
0: OFF 1: ON · Accumulated flow error
· Flow sensor failure
0: OFF 1: ON
· Temperature sensor failure
0: OFF 1: ON
· Internal product malfunction
Signed 16 bit
28 27 26 25
12 11 10 9
Reservation
Note Bit offset Item
1: ON 11 Temperature diagnosis
1: ON 12 Pressure diagnosis
1: ON 13 Fixed output
1: ON 14 Error
1: ON 15 System error
1: ON 16 to 31 Measured pressure value
1: ON 32 to 47 Measured temperature value
1: ON 48 to 63 Measured flow rate value
1: ft3 64 to 79 Accumulated flow rate lower limit
1: nor 80 to 95 Accumulated flow rate upper limit
92 91 90 89
Accumulated flow rate upper limit (PD)
76 75 74 73
Accumulated flow rate lower limit (PD)
60 59 58 57
44 43 42 41
Measured temperature value (PD)
28 27 26 25
12 11 10 9
Flow control for each branch line
24 23 22
Measured flow rate value (PD)
8 7 6
Flow rate diagnosis
Note
0: Normal 1: HHH/LLL
0: Normal 1: HHH/LLL
0: Normal output 1: Fixed output
0: Normal 1: Abnormal
0: Normal 1: Abnormal
Signed 16 bit
Signed 16 bit
Signed 16 bit
Unsigned 32 bit
88 87 86
72 71 70
56 55 54
Measured flow rate value (PD)
40 39 38
24 23 22
Measured pressure value (PD)
8 7 6
M/C
M/C
M/C
21 20 19 18
5 4 3 2
Reservation
Diagnosis items
· Rated flow error
· Above/Below the rated pressure range
· Above/Below the rated temperature range
· Error (Over current, Outside of zero-clear range, Version does not match)
· System error (Flow/Temperature sensor failure, Internal malfunction)
85 84 83 82
69 68 67 66
53 52 51 50
37 36 35 34
21 20 19 18
5 4 3 2
17 16
1 0
OUT2 OUT1
Switch output
81 80
65 64
49 48
33 32
17 16
1 0
4