Flowserve MX FOUNDATION Fieldbus Field Unit - Manual (Page 45)

45
MX/QX FOUNdaTION Fieldbus Field Unit FCd LMENIM2330-01 – 08/11
flowserve.com
B
Appendix – Feature
Definitions
Transducer Block I/O Channels
The following section defines the Transducer Block I/O channels available for use by the function
blocks.
Channel Channel Name Description
0 NOT_INITIALIZED_CHAN
1 AO_CTRL_VALVE_FLOW_CHAN Desired valve position %
2 DI_POSITION_AND_BUS_MODE_CHAN Valve status and control mode
3 DI_POSITION_CHAN Valve status, moving/stopped
4 DI_ACTUATOR_FAULTS_1_CHAN Mechanical and electrical faults 1
5 DI_ACTUATOR_FAULTS_2_CHAN Mechanical and electrical faults 2
6 DI_ACTUATOR_ALARMS_CHAN Emergency shutdown and inhibits
7 DI_DISC_USER_INPUT_CHAN Discrete input from user
8 DI_READ_DISC_OUTPUT_CHAN Read discrete output
9 DO_POSITION_CHAN Command Stop/Open/Close
10 DO_ESD_CHAN Command Emergency Shutdown
11 DO_RELAY_CHAN Command energize relays
12 AI_POSITION_CHAN Current valve position (0-100%)
13 AI_ANALOG_INPUT_1_CHAN Value of analog input 1 (0-100%)
14 AI_ANALOG_INPUT_2_CHAN Value of analog input 2 (0-100%)
The actuator fieldbus control contains four discrete input (DI) bocks. However, as described below,
there are seven DI channels to choose from, so three channels are inactive.
Details of the channels are shown in the following tables.
Channel 1 – Set Actuator Position
The Channel 1 name is AO_CTRL_VALVE_FLOW_CHAN. Data on this channel is used to set the
position of the actuator when it is locally configured to run in the Position mode.
Control valve is in units of 0-100%.
AO_CTRL_VALVE_FLOW_CHAN will only function when the actuator is in Position mode. Position
mode is selected using the setup menus, refer to Installation and Operation Manuals LMENIM2306
for the MX and LMENIM3306 for the QX.