Rockwell Automation 1757-FFLDC4 FOUNDATION Fieldbus System User Manual - Manual (Page 13)

Rockwell Automation Publication 1757-UM012A-EN-P - July 2011 13
FOUNDATION Fieldbus System Chapter 1
ControlNet and 1757-FFLDC
Linking Device Example The ControlNet network combines the functionality of an I/O network and a
peer-to-peer network, providing high-speed performance for both functions.
Devices can be scheduled for deterministic transfers of important data in
addition to unscheduled time intervals for non-critical information.
The 1757-FFLDC linking device has the option of being programmed for
scheduled, repeatable data transmissions on the Connection tab of the Module
Properties dialog box in RSLogix 5000 software. You must also run RSNetWorx
software to schedule the Logix Block to the network connection.
Figure 2 shows the RSFieldbus workstation bridged from Ethernet to the
ControlNet network via the ControlLogix chassis.
Figure 2 - ControlNet, Ethernet, and 1757-FFLDC Linking Device Example
Item Description Item Description
1 ControlLogix controller with 1756-ENBT and
1756-CNB modules 5 Power conditioner
2 Host computer and OPC server 6 1757-FFLDC linking device
3 Stratix 8000 switch (optional) 7 Field devices
4 24V DC power supply T Network terminator
STATUS WD0G
BATT NS
MODE
H1-1
H1-2
H1-3
H1-4
FOUNDATION Fieldbus
FOUNDATION Fieldbus Linking Device
A B
POWER
OK NET LINK DIAGNOSTIC
FLT ST
FLT ST 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15
DC INTPUT
DIAGNOSTIC
FLT ST
FLT ST 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15
DC OUTPUT
ST ST 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
HART
ANALOG INPUT
O
K ST ST 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
HART
ANALOG INPUT
O
K ST ST 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
HART
ANALOG INPUT
O
K
OK A B
C
N
B E
N
2
T
STATUS WD0G
BATT NS MODE
H1-1
H1-2
H1-3
H1-4
FOUNDATION Fieldbus
FOUNDATION Fieldbus Linking Device
A B
32072-M
1
2
3
HSE
ControlNet
4
5
6
7
H1 H1
T T T T