Emerson DeltaV SIS Data Sheet
DeltaV SIS Process Safety System
Product Data Sheet
DeltaV SIS™ Safety Network Components
DeltaV SIS Smart Switches LSNB
January 2021
The safety network components are based on standard Ethernet technology and are dedicated to the DeltaV SIS.
Dedicated to safety – no possibility
Introduction
of common-cause control and safety
communication failures
Required update time supported on
the DeltaV SIS™ local safety network
Scalable and cost-effective
Fully redundant networks
The local safety network (LSN) is the communication backbone
of the DeltaV SIS™ process safety system. The LSN is a standard
Ethernet network dedicated to the DeltaV SIS system that
enables communication between CHARMs smart logic solvers
(CSLS) and a single SZ controller. The CSLSs communicate
secure parameters and input data to other CSLSs over the LSN.
SZ controllers connect to both the area control network and
the LSN to isolate the CSLSs from the process control system.
Starting with v13 and later, the global safety network (GSN)
enable safety-rated communication among LSNs while allowing
functional segregation on different LSNs. A typical example
is separation of re and gas (F&G) and emergency shutdown
(ESD) applications over separate LSNs while allowing safe and
secure communication across both applications. Starting with
v14.3.1, the GSN can be logically separated in domains which
are a group of LSNs.
DeltaV SIS Safety Network Components
Engineering
Station
January 2021
SZ
LSN
Switches
Network
Logic Solvers Logic Solvers
Bridge
GSN
Switches
Network
Bridge
DeltaV SIS safety network architecture diagram.
Benefits
Dedicated to safety. Some systems from other
vendors use the same networks for both control and
safety. The DeltaV SIS LSN and GSN are dedicated to safety,
carrying only safety-rated signals and isolated from the
control network. They are therefore immune to any failure
of the control network.
Fifty millisecond update time. All the data broadcast on the
LSN is available to every CSLS on the same LSN every
50 milliseconds. Combined with the speed of the CSLS,
the 50 millisecond update time guarantees input-to-output
time of less than 300 milliseconds anywhere on the LSN
when the CSLS is congured for 50-millisecond scan rate.
SZ
LSN
Switches
LSN
Switches
Logic Solvers
Standards compliance. Network components are compliant
with standards such as IEEE, CE, and CSA.
Network diagnostics. The Light Emitting Diodes (LED)
on each switch provide health status information.
Scalable in small increments. You can expand the system
readily and economically by adding hardware incrementally
to your system. Just plug another CSLS into the LSN and it is
recognized by the system. Online addition of new CSLSs will
not interrupt your process.
Fully redundant communications. The safety networks are
fully redundant communication networks. The carriers for all
nodes have redundant safety network ports for communication
with primary and secondary network connections.
Plug-and-play components. As a dedicated safety network
with predictable communications trafc, Emerson has done all
of the system testing so you only have to plug the components
together to create the safety networks.
www.emerson.com/deltavsis 2
DeltaV SIS Safety Network Components
January 2021
LSN Description and Specification
The SZ controllers and CSLSs can be physically connected
as a star topology (the LSN does not support network
ring topologies).
Starting with DeltaV SIS v13, the LSN Bridge (LSNB) allows
communication across multiple LSNs. The LSNB connect
to the LSN following a star topology.
Refer to the latest DeltaV SIS Installation and Planning Guide
for details of network layouts and network cable shielding
requirements and power and grounding requirements for the
overall DeltaV SIS system.
For Use in Safety Integrity Level (SIL) 3 Applications
The LSN is certied for use in SIL 3 applications.
Wiring
The LSN requires the use of Category 5e screened (ScTP)
cable for the 100/1000 BaseT/TX safety network.
The maximum twisted-pair cable length for the LSN for any
device is 100 meters (328 feet).
GSN Description and Specification
Multiple LSNs can be connected using LSNBs. The LSNBs are
physically connected as a star topology (GSN does not support
network ring topologies). Starting with v14.3.1 and later,
the GSN can be logically separated in domains. A GSN domain
is a logical group of LSNs.
Refer to the latest DeltaV SIS Installation and Planning Guide
for details of network layouts and network cable shielding
requirements and power and grounding requirements for the
overall DeltaV SIS system.
For Use in SIL 3 Applications
The GSN is certied for use in SIL 3 applications.
Wiring
The GSN requires the use of ScTP cable for the 100/1000 BaseT/
TX safety network.
The maximum twisted-pair cable length for the GSN for any
LSNB is 100 meters (328 feet).
The LSNB contains Ethernet ports to provide the redundant
communication for both the LSN and GSN.
The CSLS, LSNB, and SZ controller carriers contain Ethernet
ports to provide the redundant communication for the LSN.
Fiberoptic Wiring
Safety network ports (SNP) on the CSLS are available for
copper only. DeltaV SIS Smart Switches can be connected
using beroptic cables.
Because beroptic cables do not conduct electricity,
they should be used in connections between buildings
or in plant areas where electromagnetic interference is present.
Fiberoptic cabling must be used where cable runs are longer
than 100 meters (328 ft.).
LSN Hardware Includes:
DeltaV SIS Smart Switches
Ethernet Isolation Ports on the SZ Controller
SNPs on the CSLS carrier
LSNB to communicate with other LSNs
through a GSN.
A redundant CSLS communicates over the LSN with up to
15 other CSLSs, 1 SZ controller, and 1 LSNB allowing great
exibility and ease of system expansion.
Only DeltaV SIS Smart Switches are supported on the LSN.
Fiberoptic Wiring
Ethernet on the LSNB carrier are available for copper
only. DeltaV SIS Smart Switches can be connected using
beroptic cables.
Because beroptic cables do not conduct electricity,
they should be used in connections between buildings
or in plant areas where electromagnetic interference is present.
Fiberoptic cabling must be used where cable runs are longer
than 100 meters (328 ft.).
GSN Hardware Includes:
DeltaV SIS Smart Switches
LSNBs to communicate with other LSNs throughout the GSN.
LSNB communicates over the GSN with other LSNBs,
allowing great exibility and ease of system expansion.
Up to 16 LSNBs can publish safety data into one GSN domain
but the maximum number of LSNBs publishing information
depends on amount of data published by each LSNB.
There is no limit for the number of LSNBs subscribing to
information from the GSN. Prior v14.3.1, only one domain
was supported within the GSN, starting v14.3.1 and later,
up to 16 domains are supported within the GSN. Refer to
Books Online for more information about system capacities.
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DeltaV SIS Safety Network Components
January 2021
Only DeltaV SIS Smart Switches are supported on the GSN.
The GSN requires DeltaV SIS Smart Switches with software
release 4.2.14 or greater.
DeltaV SIS Smart Switches
The DeltaV SIS Smart switches are “built-for-purpose” switches
with DeltaV SIS specic software and features to make them
plug-and-play in the safety network.
DeltaV SIS Smart Switches require no conguration to function
on the safety network.
DeltaV SIS Smart Switches are the only supported switch
to be used within the LSN and GSN. DeltaV SIS Smart Switches
are different than DeltaV Smart switches (non-SIS) and are
not interchangeable.
DeltaV SIS Smart Switch Specifications
SS6041F01C1
Ambient Conditions
Operating Temperature 0° to +60°C -40° to +70°C 0° to +50°C
Storage/Transport Temperature -40° to +70°C -40° to +70°C -20° to +85°C
Relative Humidity (Non-Condensing) 10% to 95% 10% to 95% 10% to 95%
Conformal-Coated No Yes No
Harsh Area Rating G2 G2 (conformal coating
Mechanical stability – All switches:
IEC 60068-2-27 shock 15 g, 11 ms duration, 18 shocks
IEC 60068-2-6 vibration 1 mm, 2 Hz - 13.2 Hz, 90 min.; 0.7g, 13,2 Hz - 100 Hz, 90 min.; 3.5 mm, 3 Hz - 9Hz,
10 cycles, 1 octave/min.; 1g, 9 Hz - 150 Hz, 10 cycles, 1 octave/min.
EMC emitted immunity:
FCC CFR47 Part 15 FCC CFR47 Part 15
EN 55022 EN 55022 Class A
EMC interference immunity SS6041F0(1,5,6) DIN rail switches:
EN 61000-4-2 electrostatic discharge (ESD) 6 kV contact discharge, 8kV air discharge
EN 61000-4-3 electromagnetic eld 10 V/m (80 - 1000 MHz)
EN 61000-4-4 fast transients (burst) 2 kV power line, 1 kV data line
EN 61000-4-5 surge voltage power line: 2kV (line/earth), 1kV (line/line), 1kV data line
EN 61000-4-6 conducted immunity 3 V (10 kHz - 150 kHz), 10 V (150 kHz - 80 MHz)
EMC interference immunity: SS6048R2P(1-4) Rack mount switches:
EN 61000-4-2 electrostatic discharge (ESD) 4 kV contact discharge, 8kV air discharge
EN 61000-4-3 electromagnetic eld 10 V/m (80 - 2700 MHz)
EN 61000-4-4 fast transients (burst) 2 kV power line, 4 kV data line
EN 61000-4-5 surge voltage power line: 2kV (line/earth), 1kV (line/line), 4kV data line
EN 61000-4-6 conducted immunity 10 V (150 kHz - 80 MHz)
SS6041F05C1
SS6041F06C1
DIN Rail Mount
SS6041F01C2
SS6041F05C2
SS6041F06C2
DIN Rail Mount
allows switch to be used in
G3 environments but switch
is not certied to G3)
SS6048R2P(1-4)
Rack Mount Switches
G2
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