Indications and Control Commands
For specific applications, it may be necessary to expand the capacity of the base units within the SAE FW-5 product family according to operational requirements.
Depending on the selected type and configuration, up to 12 expansion modules can be connected to a single RTU (Remote Terminal Unit), enabling the system to be scaled according to the required number of indications and control commands.
Based on the required functionality, the appropriate expansion module can be selected to expand the RTU configuration while maintaining efficient and reliable operation.
Connection of Expansion Modules
The TBUS connector provides communication with the base unit while simultaneously supplying power to most expansion modules. This simplifies the installation process and enables convenient integration of extension modules within the RTU system.
If the power supply provided by the base unit is insufficient, the PWR-1 module supplies an additional 2.8 A auxiliary power source for connected expansion modules.
The TBUS Remote I/O Extension also enables the integration of expansion modules in remote island installations with their own independent power supply, allowing distributed I/O expansion beyond the central installation.
SAE 8DI
8 Digital Indications
Power consumption: 85 mA per module
Digital wide-range inputs
±24 to 60 VDC ±20%
Common reference potential
Switching threshold: 18 VDC
Detection time: 1 ms
SAE 8DI–220
8 Digital Inputs / Indications
±110 VDC / ±220 VDC
Common reference potential
Switching threshold 88 VDC, detection time 1 ms
Power consumption: 85 mA per module
SAE 8DI2AI
8 Digital Inputs / Indications
±110 VDC / ±220 VDC
Common reference potential
Switching threshold 88 VDC, detection time 1 ms
Power consumption: 85 mA per module
SAE 4AI
4 Analog Measurements, 16-bit resolution
Multi-range ±2.5 / ±5 / ±10 / ±20 mA
Overload capability ±110%
50 Hz ripple suppression
Detection time 100 ms
±0.1% from +5°C to +55°C, maximum error ±0.25%
Galvanically isolated per channel, 2-wire connection
Power consumption: approx. 150 mA per module
SAE DSO-1
6 Command Relays, 1.5-pole, up to 72 VDC
1-out-of-n selection, external circuit supervision
Cascadable for 6 single commands or 3 double commands
2 internal enabling relays
6 Feedback Inputs, 24 to 60 VDC ±20%
Switching threshold 12 VDC, common reference potential
Power consumption: max. 250 mA per module
SAE PM-2 Power Measurement Terminal
Measurement in MV and LV networks, direct connection or via instrument transformers
Voltages U1/U2/U3/UL-N up to 400 VAC
UL-L up to 690 VAC
Currents I1/I2/I3/IN, 1 A / 5 A, frequency accuracy ±1 mHz
Line-to-line voltage, power and energy measurement
Power factor, total and average values
Power consumption: max. 150 mA per module
SAE PM-2 1-R Power Measurement Terminal
Measurement in MV and LV networks using Rogowski coils
Voltages U1/U2/U3/UL-N up to 300 VAC
UL-L up to 480 VAC
Input resistance 1130 kΩ
Currents I1/I2/I3/IN up to 4 kA
Measurement range 0 to 400 mV secondary
Input resistance 490 kΩ
Active, reactive and apparent power measurement
Frequency measurement and phase power factor (cos φ)
Power consumption: max. 150 mA per module
SAE RES-1 4 S0
4 Active S0 Pulse / Counter Inputs
Detection time 10 ms
2 Analog Measurements, 16-bit multi-range
±2.5 / ±5 / ±10 / ±20 mA
Overload capability ±110%, detection time 100 ms
4 Command Relays, 72 VDC, 1 A up to 48 VDC
Galvanically isolated per channel, 2-wire connection
Power consumption: 400 mA per module
SAE 2AO
2 Analog Outputs, 16-bit setpoints
Uni-/bipolar ±20 mA, max. load 400 Ω
±0.1% /10 K over full scale
Galvanically isolated per channel, 2-wire connection
Power consumption: approx. 75 mA per module
Additional power supply 24 to 60 VDC, max. 1.8 W
SAE IFX-485-1 RS-485 Converter
Converter between RS-232 and RS-485
Conversion from RS-232 for FW-5 / GATE (X.101 / V.24)
15 cm RJ45 patch cable
Internal power supply
SAE T-BUS-T / T-BUS-R Remote I/O
Remote I/O operation via CAT5e patch cable
For T-BUS-R additionally: MSTB power supply connector
4-pole, 0.2 to 2.5 mm²
Power supply 24 to 60 VDC ±20%, 15 W
2 MSTB screw terminals, 2-pole, 0.2 to 2.5 mm²
For interlocking signals of command control modules cmd and 1/n functions of DSO-x modules
SAE 8DO
8 Digital Command Outputs
Relay outputs up to 72 VDC
Galvanically isolated per channel
2-wire connection
Switching capability:
2 A up to 48 VDC
1 A at 60 VDC
Power consumption: max. 200 mA per module
SAE 8DO–220
8 Command Outputs up to 230 VDC / VAC
Galvanically isolated per channel, 2-wire connection
Switching capacity: DC: 2 A up to 24 VDC, 0.2 A at 110 VDC, 0.1 A at 220 VDC resistive load
AC: 2 A up to 230 VAC
Power consumption: max. 200 mA per module
SAE 4DI4DO
4 Analog Measurements, 16-bit resolution
Multi-range ±2.5 / ±5 / ±10 / ±20 mA
Overload capability ±110%
50 Hz ripple suppression
Detection time 100 ms
±0.1% from +5°C to +55°C, maximum error ±0.25%
Galvanically isolated per channel, 2-wire connection
Power consumption: approx. 150 mA per module
SAE DSO-2 1
4 Relay Outputs, 2-pole, up to 72 VDC
1-out-of-n selection, external circuit supervision, cascadable for one double-command application
2 internal enabling relays
2 Feedback Inputs, 24 to 60 VDC ±20%
Switching threshold 12 VDC, common reference potential
Power consumption: max. 250 mA per module
SAE PM-1 Power Measurement Terminal
Measurement in MV and LV networks using low-signal instrument transformers
Voltages U1/U2/U3/UL-N up to 3.25/√3 VAC
UL-L calculated
Input resistance 200 kΩ
Currents I1/I2/I3/IN
Measurement range 0 to 225 mV secondary
Input resistance 490 kΩ
Active, reactive and apparent power measurement
Frequency measurement and phase power factor (cos φ)
Power consumption: max. 150 mA per module
SAE VPP-1
6 Indications, 24 to 60 VDC ±20%, detection time 1 ms
5 Command Outputs up to 72 VDC
Switching capacity: 1 A up to 30 VDC, 1 A at 60 VDC
2 Analog Measurements ±22 mA, galvanically isolated per channel
Detection time 100 ms
2 Analog Setpoints, 20 mA
Common reference potential, max. load 500 Ω
Power consumption: max. 390 mA per module
SAE PIT-1
Active inputs for humidity and dew-point sensors
Detection time 10 ms, 24 VDC, load 7.5 kΩ
Compatible with JOLA SPS2 series
PT100 temperature sensor, 0°C to +150°C, 2-wire connection
4 Relay Outputs
2-pole connection, galvanically isolated per channel
Max. 75 VDC, 50 VAC
Power consumption: 285 mA per module
SAE ISO-1
4 Insulation Measurements between sensor and pipe
Measurement range 0 kΩ to 60 MΩ
Configurable limit values for Cu and NiCr systems
4 Loop Resistance Measurements
Measurement range 200 Ω to 12 kΩ
Continuous transmission of measured values
NiCr measuring wires: max. 1,500 m
Cu measuring wires (Nordic system): max. 10,000 m, recommended < 2,500 m
Power consumption: 215 mA per module
SAE mcFO Media Converter
mcPS-1
Power Supply Module 24 to 60 VDC ±20%, 20 VA
Power supply for fiber optic modules, 2.8 A / 5 V / 14 VA
Galvanically isolated
1 EIA / RS-485 interface
Galvanic isolation via fiber optic connection
1200 baud to 64 kbaud, half-duplex
Power supply module: mcPS-1
SAE PWR-1
Supply voltage 24 to 60 VDC ±20%, wide-range input
Power consumption max. 15 W
TBUS supply max. 2.8 A
Automatic load shedding in case of overload