Specific Activation And De-Activation Of Non-Tripped Output Channels; Table 20: Bit Allocation For Control Input S1 - WAGO EPSITRON 787-1668 Series Manual

38 Function Description
6.6.2 Specific Activation and De-activation of Non-Tripped
Output Channels
A coded pulse pattern must be present to activate and de-activate specific output
channels. The encoded pulse pattern can consist of
• 17 bits or
• 89 bits (with Firmware 2.0 and higher),
which must be transmitted as "Manchester code" (based on IEEE 802.3). Here, a
falling clock pulse denotes a logical zero ("0"), and a rising clock pulse a logical
one ("1").
The first bit to be transmitted has the value "0" and serves as the start bit, after
which either 16-bit or 88-bit user data is transmitted.
No separate pulse signal is applied; the electronic circuit breaker obtains the pulse
signal from the pulse pattern that is received. The circuit breaker is then
synchronized automatically and transmits the current status back via signal output
S2.
The table below provides an overview of the functions for the individual data bits:

Table 20: Bit Allocation for Control Input S1

Bit
1
2
3
4
5
6
7
8
9
10
11
Output Byte
channel
Channel 8
Channel 7
Channel 6
Channel 5
Byte 1
Channel 4
Channel 3
Channel 2
Channel 1
Command
bit
"switching
status"
Byte 2
Command
bit
"protocol
length"
787-1668 Electronic Circuit Breaker
Function
START bit, value = "0"
Required switching statuses of output channels
"1" = The corresponding output channel is
activated.
"0" = The corresponding output channel is
deactivated.
"1" = The required switching statuses of the
output channels (Byte 1) are accepted.
"0" = The required switching statuses of the
output channels (Byte 1) are ignored.
"1" = The extended 89-bit protocol is being
used; the circuit breaker is transferring
additional user data.*
"0" = The short 17-bit protocol is being used.
EPSITRON®
Manual
Version 1.1.0