Hardware Channels - ABB 650 series Engineering Manual

Section 5
Protection and control engineering
5.1.7
56
IEC08000304 V1 EN
Figure 37: ACT: Warning message by signal mismatch for a connection

Hardware channels

Hardware channels can only be connected to a function block input or output. A
hardware connection can be established in ACT or SMT. When a hardware channel
is connected a graphical symbol appears in ACT, see
also represented in SMT with a cross mark. Hardware channels are always visible
in SMT.
Supported hardware channels are:
• Binary input channels
• Binary output channels
• Analog input channels
A hardware input channel can be used as often as it is needed. A hardware binary
output channel is taken from the list of available channels when a new channel is
requested. That prevents for using a hardware binary output channel twice. As an
example, see Figure 38.
1MRK 511 261-UEN -
IEC08000304.vsd
Figure 38. The connection is
650 series
Engineering Manual