Onicon F-2600 Uživatelský manuál stáhnout pdf (Strana 86)

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F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page 86

The oating point registers with values in display units are scaled to the same units as

are displayed, but are instantaneous values that are not smoothed. If display smoothing

is enabled (non-zero value entered in the Display TC item in the Display Menu), then the

Exception Status Denitions

The Read Exception Status command (function code 07) returns the exception status byte,

which is dened as follows. This byte may be cleared by setting “coil” register #00003

(function code 5, address 2, data = 0xff00).

Bit(s) Denition

0-1 Byte order (see Modbus Order on page 2)

0 = 3-2:1-0 1 = 2-3:0-1

2 = 1-0:3-2 3 = 0-1:2-3

2 Temperature sensor fault

3 Pressure sensor fault

4 A/D converter fault

5 Period overow

6 Pulse overow

7 Conguration changed

Discrete Input Denitions

The status of the three alarms may be monitored via the Modbus Read Discrete Input

command (function code 02). The value returned indicates the state of the alarm, and will

be #1 only if the alarm is enabled and active. A zero value is transmitted for alarms that

are either disabled or inactive.

Registers Variable Function Code Address

10001 Alarm #1 state 02 0

10002 Alarm #2 state 02 1

10003 Alarm #3 state 02 2

1 2 ... 81 82 83 84 85 86 87 88 89 90 91 ... 130 131

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Onicon F-2600 Uživatelský manuál Strana 86