User Manual

L
ogical I/O blocks
Slope [Slpe] and Intercept [Icpt]
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274 | 353 CM110664en_07
Signal type
measurement
Description Standard
measuring range
Resolution on the
bus
Value range on
the bus
[Slpe] [Icpt]
I25/020 (Shunt 200
Ohm)
DC 0 ... 25mA 1 … 5 mA 1/1000 V 0 ... 5000 0.001 0
I25/020 (Shunt 100
Ohm)
DC 0 ... 25mA 0 … 10 mA 1/500 V 0 ... 5000 0.002 0
I25/020 (Shunt 50
Ohm)
DC 0 ... 25mA 0 … 20 mA 1/250 V 0 ... 5000 0.004 0
I25/020 (Shunt 40
Ohm)
DC 0 ... 25mA 0 … 25 mA 1/200 V 0 ... 5000 0.005 0
I25/020 TX-I/O* DC 0 ... 20mA*) 0 ... 20 mA* 1/1000 mA 0 ... 20000 0.001* 0
U10 (Shunt 400
Ohm) TX-I/O*
DC 0 ... 25mA*) 0 ... 25 mA* 1/1000 V 0 ... 10000 0.0025* 0
Key
*
TX-I/O modules support only 0 ... 20 mA. For a range of 0 ... 25 mA, use the shunt for 400
Ohm (0.1%, 1 W) and measure the voltage with U10.
The analog input block is used in the Desigo PX Compact PXC10 TL to PXC52
automation station in cases where an LG Ni1000 sensor (signal type R1K) or
DC 0…10 V (U10) is connected to device terminals X1…X16 of Module 001.
The following information results:
Signal type measurement Description Standard measuring range [Slpe] [Icpt]
R1K LG-Ni 1000 -50…150 °C 0.01 0
U10 DC 0…10V 0…10 Volt 0.001 0
Reference to a value in another BACnet object. As the referenced value is
already available as a converted or resulting value, no conversion is required,
that is, [Slpe] must be defined as 1 and [Icpt] as 0.
The measured value from a room unit connected via the PPS2 interface. In the
analog input block, only Objects 24 (setpoint correction) and 40 (room
temperature) may be used. As the value is already available as a converted or
referenced value, no conversion is required, that is, [Slpe] must be defined as 1
and [Icpt] as 0.
[Slpe] and [Icpt] Analog Output
In the PX modular automation stations, the analog output block is used with the
following signal types:
Signal type positioning Description Standard measuring range [Slpe] [Icpt]
Y10S DC 0…10 V 0 … 10 V 100 0
Y420 DC 4…20 mA 4 … 20 mA 160 4000
Y250T (P-bus)* Three-point AC 24…250 Volt 2.55* 0
Y250T (Island bus)* Three-point AC 24…250 Volt 100* 0
Key
*
Value [Slpe] for Y250T is not a physical value, but rather a special code controlling output of
the AO to two relay outputs. This code differs between P-bus and island bus.
The analog output block is used in the PX compact automation stations, when
valves or actuators with DC 0…10 V control signals, signal type Y10S, are
connected to device terminals Y1…Y8 of Module 004.
I/O configuration PX
Compact
BACnet referencing
PPS2 interface
I/O modules PX
modular
I/O configuration PX
Compact