Flowserve MX FOUNDATION Fieldbus Field Unit Manual do Utilizador descarregar pdf (Página 50)

MX/QX FOUNDATION Fieldbus Field Unit FCD LMENIM2330-01 – 08/11

Channel 10 – Emergency Shutdown

The Channel 10 Discrete Output, DO_ESD_CHAN, accepts values requesting that the network ESD be

disabled or enabled. It also provides two status values, read back from the network ESD, indicating:

• The network ESD is not active

• The network ESD is active

Channel 10 DO_ESD_CHAN Value

Valid values to write to this block

Disable Network ESD 0x00

Enable Network ESD 0x01

Readback on the DO_ESD_CHAN

Network ESD NOT active 0x00

Network ESD active 0x01

Channel 11 – Relay Outputs

The Channel 11 Discrete Output, DO_RELAY_CHAN, provides seven outputs to control seven actuator

relays, four of them latching and three non-latching. It also accepts seven status values and read

back of host-initiated values.

Channel 11 DO_RELAY_CHAN Value

Valid values to write to this block

User Output S2 or R2 & R3 (optional) and R4 (optional) Bits 0 - 3

User Output R5, R6, R7, R8

(Located on optional I/O board)

Bits 4 - 6

Readback on the DO_RELAY_CHAN

User Output S2 or R2 & R3 (optional) and R4 (optional) Relay Energized Bits 0 - 3

User Output R5, R6, R7, R8 Relay Energized

(Located on optional I/O board)

Bits 4 - 6

NOTE: Relays must be conﬁgured for network control or data will be invalid.

Channel 12 – Actuator Position Channel

The valve position is in units of 0-100% of open.

Channel 13 – Analog Input 1

The 4-20 mA user input is reported in units of 0-100%.

Custom Transducer Block (LTB)

The Custom Transducer Block item name is _lmtrq_tranducer_block (LTB). The table for the

Transducer Block is shown below. The Block Tag is deﬁned to be unique throughout the control

system at one plant site. The tag may be changed using the FB_Tag service.

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 83 84

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Flowserve MX FOUNDATION Fieldbus Field Unit Manual do Utilizador Página 50