Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 50)

MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
50
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.