Pb2Sw - Pb2 Switch - Siemens Moore 353 User Manual

UM353-1

3.2.74 PB2SW - PB2 Switch

PB2SW is one of three general purpose switches
available in each loop. It can be utilized for switching
Boolean signals in such applications as: toggling the
EITS (External/Internal setpoint Transfer Switch)
function block, Start/Stop, controlling the position of a
TSW (Transfer Switch) function block for switching
analog signals, or other operator initiated actions.
The switch can be configured for momentary or
sustained operation. As momentary, the switch will
transfer to the NO position when the button is pressed
and will return when released. Momentary action is used
in toggle applications such as changing the function of
the EITS function block. In the sustained mode, the
switch will alternate positions each time the button is
pressed. An unconfigured NC input defaults to 0 and an
unconfigured NO input to 1. With firmware 1.30 and
higher, the button can be remotely activated through a
command over Modbus or LIL.
This block operates with an operator faceplate that includes green and red LEDs that are turned on using input MD.
A HI (1) input will turn on the Green LED and a LO the Red LED. The default connection will be the PS output of
the block but should be changed as required to display the correct status. The message parameters do not apply to
the current product.
PB2 Switch
Operator Display Interface
BOD LEDS
MD HI ST
G
PB2
MD LO ST
R
NC
NO
Momentary Action
Sustained Action
X03127S0
BLOCK DIAGRAM
March 2003
UOD MSG
MD HI AC
***** *****
MD
MD LO AC
MD Input
***** *****
PS
PB Switch
Output
BOD - Basic Operator Display
MD - Message Display
UOD - Universal Operator Display
PB2 SWITCH
ESN = 000
PB2SW
NC
NC Input
PB2 Switch
NO Input
NO
Message Display MD
A C T I O N
Switch ACTION
(S)
P U L A S T
Power Up LAST
M D H I S T
MD HI STatus message
M D
L O S T MD LO STatus message
M D H I A C
MD HI ACtion message
M D L O A C
MD LO ACtion message
I N P U T N C ...........
INPUT NO
(H)
I N P U T N O
INPUT NC ...........
(H)
I N P U T M D ...........
INPUT MD
(H)
E S N
Exec. Seq. No.
(H)
POWER UP - When the switch is configured for
momentary action, it will always power up in the
NC position. For sustained action, with the
POWER UP parameter set to YES, the switch will
power up in the last position during a hot or warm
start, and during a cold start will power up in the
NC position. When the POWER UP parameter is
set to NO, the switch will power up in the last
position during a hot start. During a warm or cold
start, it will power up in the NC position.
Function Blocks
PS PB/Switch Output
................... MOM/SUS (MOM)
...................... NO/YES (YES)
(S)
.. 5 ASCII Char (GREEN)
(S)
. 5 ASCII Char (RED)
(S)
... 5 ASCII Char (RED)
(S)
. 5 ASCII Char (GREEN)
(S)
loop tag.block tag.output (null)
loop tag.block tag.output (null)
loop tag.block tag.output (null)
..................... 001 to 250
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