H-S81-HS Installation & Operation Manual — P/N LS10114-000HI-E:A 2/24/2015 57
I/O modules Parts of the H-S81-HS System
2.4.4 S81-F4003-1 & S81-F4003-2
Description
Safety related module with 8 x 4-20mA analog inputs and two thresholds to be
programmed on the module through the operator cycle. The following trans-
ducer types can be connected to this module: Explosion Sensors, Air Quality
Sensors, Oxygen Sensors, Temperature Sensors, 4-20mA General Sensors. The
channels are continuously tested during operation. The analog value of each
channel can be transferred to a DCS by means of the S81-F7006-1 Modbus RTU
module. This module can be duplicated in fault tolerant systems; in this case, the
two modules shall be placed on two adjacent racks in the same position. In this
configuration, the eight detection lines are connected to both modules.
Technical Features
Status Indications
Module front panel includes two status LEDs for each one of the eight channels.
Configuration
By using the configuration program ProS81, the following parameters can be set for each input
channel:
• Safety rating: applicable up to SIL3
• Redundancy: S81-F4003-2 model
• Alarm threshold: 2 programmable thresholds for each channel
• Channel test: continuously
• Measuring range 0-24mA
• Line short circuit condition: with current >23.5mA
• Supply voltage: 22-29VDC
• Quiescent current: 13mA
• Operating temperature: -5 - 50 °C
• Storage temperature: -30 - 80 °C
• Maximum humidity: 95% (RH) non-condensing
• Hot swap capability: yes
Input channel status
Indications Line LEDs 1-8
Red LED Yellow LED
Normal −−
Disabled −⊗
Trouble −−
Pre-alarm −−
Alarm ⊗−
Key to symbols: ⊗= steady on LED; − = LED off; ∅= flashing LED
Function Allowed values
Operating mode Latching/Non latching, UP/Down, NM
Mode of analog value transfer to Hosts Upon request/Automatic in case of change
Unit of measure of the channel Ppm, %LEL, %O2, mA, °C, RH, V, bar, db, rpm
Zero Point of the measuring range -999 - 999
End of scale of the measuring range -999 - 999
Pre-alarm threshold -999 - 999
Alarm threshold -999 - 999
Lower trouble threshold 1.0 - 3.8mA
Alarm delay 0 - 255 seconds
Type of indication Fire, Supervisory, Gas, Trouble, Hidden, Buzzer Only
Automatic alarm reset Yes/No
Enable/Disable status export via ModBus Yes/No
Enable/Disable status export to Hosts No, TCP1, TCP2, RS232
Enable/Disable commands from Hosts on the channel No, TCP1, TCP2, RS232
It defines the format of the analog value sent via ModBus,
and automatically via Host
mA, mA tenth, VI, VI tenth, converter points