BELIMO FSKN24-BAC Fskn Bacnet Modbus Instruction Manual

BELIMO FSKN24-BAC Fskn Bacnet Modbus Instruction Manual

BACnet & Modbus Information

Remote testing module for actuated fire & smoke dampers via BACnet & Modbus

• Communication via BACnet MS/TP and Modbus RTU (RS-485)
• AC 24V (+/- 10%), DC 24V (+10%, -0%)
• AC 120V (+/- 10%)
• Testing and status reporting initiated by a single command
• FSTF, FSLF, FSNF, FSAFB & FSAF*A actuators.

For initial start up and LED indications see FSKN Installation Instructions
For wiring diagrams for various other electrical arrangements see FSKN Application Guide

For data sheets see FSKN24-BAC or FSKN120-BAC
www.belimo.com/us/shop/en_US/Actuators/ Fire-&-Smoke-Actuators/FSKN24-BAC
or
www.belimo.com/us/shop/en_US/Actuators/ Fire-&-Smoke-Actuators/FSKN120-BAC

WARNING!
The FSKN is not to be used in smoke control systems for any safety function. It is not UL 864 UUKL listed. It is an interface for testing containment dampers per Chapter 7 of the IBC and IFC only. Use the FSKN with spring return closed dampers only.

For questions contact: Larry Felker, Fire & Smoke Product Manager

• FSKN120-BAC

• FSKN24-BAC

Circuit boards for both models are identical in functions

Overview of FSKN application

see data sheets or FSKN Installation Instructions for wiring details
The FSKN has a normally closed relay that passes power through to the standard fire and smoke damper safeties – a smoke detector and the high temperature limit on the damper. Activation of a test will open the relay to spring close the damper. The position indication switches are monitored to prove proper function. A pass or fail message is then available for BACnet to record.

General information BACnet

Date: July 2022
Vendor Name: BELIMO Automation AG
Vendor ID : 423
Product Model Numbers: FSKN120-BAC, FSKN24-BAC
Applications Software Version : 1.0.4
BACnet Protocol Revision :14
Product Description: Test module for actuated fire and combination fire & smoke Dampers in containment applications
BACnet Standard Device Profile : BACnet Application Specific Controller (B-ASC) BACnet Interoperability Buildings Blocks supported (BIBBs):

• Data sharing – Read Property-B (DS-RP-B)
• Data sharing – Read Property Multiple-B (DS-RPM-B)
• Data sharing – Write Property-B (DS-WP-B)
• Data sharing – COV-B (DS-COV-B)
• Device management – Dynamic Device Binding-B (DM-DDB-B)
• Device management – Dynamic Object Binding-B (DM-DOB-B)
• Device management – Device Communication Control-B (DM-DCC-B)

Segmentation capability: No
Data Link Layer Options: MS/TP master
Baud rats: 9,600; 19,200; 38,400; 76,800
Device Address Binding: No static device binding supported
Networking Options: None
Character Sets supported: ISO 10646 (UTF-8)
Gateway Options: None
Network Security Options: Non-secure device
Conformance: BTL Certified April 2022

BACnet interface information

Object processing

Object NameLocationAPDU timeout (1000…60’000) Number of APDU Retries (0…10) Max Master (1…127)Max Info Frames (1…255)
Multi-state Input [MI]| Description State text|
Multi-state Value [MV]| Description State text|

Service processing

• The device does not support the services CreateObject and DoleteObject.
• The specified maximum length of writable strings is based on single-byte characters.
  • Object name: 32 char
  • Location: 64 char
  • Description: 64 char
• The device supports the Device Communication Control and Reinitialize Device services No password is required.
• A maximum of 64 active COV subscriptions with a lifetime of 1…28800 sec. (8 hours) are supported

BACnet Dip switch settings

Baud rate| 1| 2| | Parity| 3| 4| | Termination| 5| | Bus| 6
---|---|---|---|---|---|---|---|---|---|---|---|---
9‘600| OFF| OFF| 1-8-N-2| OFF| OFF| with 150 Ω| ON| BACnet| ON
19‘200| OFF| ON| 1-8-N-1| OFF| ON| OFF| OFF| Modbus| OFF
38‘400| ON| OFF| 1-8-E-1| ON| OFF|
76‘800| ON| ON| 1-8-O-1| ON| ON
BACnet address| 1| 2| 3| 4| 5| 6| 7| 8
---|---|---|---|---|---|---|---|---
0| | OFF| OFF| OFF| OFF| OFF| OFF| OFF
1| | OFF| OFF| OFF| OFF| OFF| OFF| ON
2| | OFF| OFF| OFF| OFF| OFF| ON| OFF
…| | | | | | | |
127| | ON| ON| ON| ON| ON| ON| ON

Parity does not need to be set.

The built-in 150ohm EOL termination may be enabled by setting DIP switch 5 to the ON position. EOL termination should only be enabled when the FSKN is the first or last physical device on a network segment.

BACnet object description

Object Name| Object
Type
[Instance]| Description / Comment| Values| Value
Default| COV
Increment| COV
Increment
Default| Access
---|---|---|---|---|---|---|---
Device| Device| Object device| 0…4194302| —| —| —| W
| [Inst.Nr]| Device Name: If set to an empty string, default Device name is set to factory settings.| | | | |
| | Device Instance Number = Device Offset Object + BACnet| | | | |
| | MAC address (Dip Switches), not writable with Instance| | | | |
| | Property| | | | |
RelPos| AI[1]| Relative Position in %| 0-50-100| —| 0.01…100| 1| R
AbsPos| AI[2]| Absolute Position in °| 0-45-90| —| 0.01…65535| 1| R
OffsetDevicelD| AV[121]| This value plus the parameterized MAC address (0…127)| 0…4’194’056| 1000| 1.0…1000| 1| W
| | define the Device Instance Number.| (2^22 – 247)| | | |
Object Name| Object
Type
Instance| Description / Comment| Values| Default| Access
---|---|---|---|---|---
Summary Status| BI[1 01]| Summary status Note: Summary Status summarizes the state from Mll1061, MI(1101 MI(1111.| 0: OK1: Not OK| —| R
Command| MV[120]| Initiate Function Initiation of actuator functions for service and test, the value goes after the command back to None (1) automatically.| 1:   None 2: — 3:   Test4:   Reset| 1| W
Internal Activity| MI[100)| Detailed Status InformationTest: Internal Test running, activated by bus| 1:   None2:   Test| —| R
Status Actuator| MI[106]| Status Actuator: Mechanical overload due to blocked actuator etc.| 1:   OK2:   Actuator cannot move| —| R
Status Device| MI[110]| Status Device: Internal Error, Hardware Defect,| 1: OK,2: 3:   IntemaiError| —| R
Status Tripping| MI[111]| Status Sensor: Indicates information about the status of the BAE temperature sensor if employed| 1:   OK2: 3:   Temperature Sensor triggered| —| R

Acces R Read, W While, C Commendable with priority amah All Statue information need a reset command to go back to normal operation

General information Modbus

(Start bits, Data bits, Parity, Stop bits)
Baud rate| 9’600, 19’200, 38’400, 76’800 BdDefault: 38’400 Bd
Address range| 1…247, values over 247 are interpreted as 247,0 = Broadcast
Terminating resistor| 150 O. can be activated by DIP-Switch|  |

Modbus Dip switch settings

Baud rate| 1| 2| | Parity| 3| 4| | Termination| 5| | Bus| 6
---|---|---|---|---|---|---|---|---|---|---|---|---
9‘600| OFF| OFF| 1-8-N-2| OFF| OFF| with 150 Ω| ON| BACnet| ON
19‘200| OFF| ON| 1-8-N-1| OFF| ON| OFF| OFF| Modbus| OFF
38‘400| ON| OFF| 1-8-E-1| ON| OFF|
76‘800| ON| ON| 1-8-O-1| ON| ON
Modbus RTU address| 1| 2| 3| 4| 5| 6| 7| 8
---|---|---|---|---|---|---|---|---
0| | OFF| OFF| OFF| OFF| OFF| OFF| OFF
1| | OFF| OFF| OFF| OFF| OFF| OFF| ON
2| | OFF| OFF| OFF| OFF| OFF| ON| OFF
…| | | | | | | |
127| | ON| ON| ON| ON| ON| ON| ON

Parity does not need to be set

The built-in 150ohm EOL termination may be enabled by setting DIP switch 5 to the ON position. EOL termination should only be enabled when the FSKN is the first or last physical device on a network segment.

Commands

All data is arranged in a table and addressed by 1..n (register) or 0..n-1 (address). No distinction is made between data types (Discrete Inputs, Coils, Input Registers, Holding Registers). As a consequence, all data can be accessed with the two commands for Holding Register. The commands for Discrete Inputs and Input Registers can be used as an alternative.

Standard commands:

Read Holding Registers [3] Write Single Register [6]

Optional commands: Read Discrete Inputs [2] Read Input Registers [4] Write Multiple Registers [16]

Note regarding Read Discrete Inputs

The command reads one or more bits and can alternatively be applied for reading the malfunction and service information in Register 105 (Adr 104). The Start address for “BAE (duct temperature sensor) triggered” is calculated with 104166 1670

Modbus register description

Register 1 (reserved) Not used in this device. Constant value 65’535.
Register 2: Not used
Register 3: Command Initiation of actuator functions for service and test; the register is reset automatically.

Command
0: None
2: Test run
4: Reset faults

Register 4: Actuator type

Actuator type

3: Fire damper actuator

Register 5: Relative position

Position in accordance with position indicator switches

• Damper closed: 0 (0%)
• Intermediate switching: 5,000 (50%)
• Damper open: 10,000 (100%)

Register 6: Not used

Register 9: Collective fault Fault is set when one of the bits 0…7 of Register 105 is set (used as sensor value for air/water/VAV).

Collective fault

0: no fault
1: fault

Register 105: The status information is split into messages about the actuator (malfunctions) and oth Malfunction and service information information.

| Bit| Description
---|---|---
Malfunctions (low byte)| 0| —
1| Actuation path increased
2| Mechanical overload
3| —
4| Safety-relevant malfuntion
|
6| BAE triggered
|
Service (high byte)| 8| Internal activity
9| —
|
|
12| —
13| —
14| —
15| —

Bit 4 : Safety-relevant malfunction – Internal device error – Contact BELIMO
Bit 8: Internal activity – Shows if there is a Test run via Modbus or test button

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