Configuration Overview; Station Function Blocks; Station Hardware I/O Blocks; Loop Function Blocks - Siemens 353 User Manual

UM353-1B

2.0 CONFIGURATION OVERVIEW

Configuration enables a user to select function blocks, stored in the controller, from an available list and enter
appropriate block parameters to implement a specific control strategy. Although configuration affects the entire
station, the controller partitions related control implementations into LOOPS. A maximum of 99 loops can be
configured and 25 can have operator displays that are mapped to network communications
Each LOOP can contain the function blocks listed in the following paragraphs. Signals can be connected between
function blocks within the LOOP as well as between loops. Also, there are several STATION function blocks that
are fixed and available in the STATION menu for setting station related values.
Section 3 Function Blocks fully describes all available function blocks. For tuning guidelines refer to Section 8.3
Autotune Procedure or request AD353-119 Digital Controller Tuning.
This User's Manual includes the functionality provided by MPU Controller Board
Design Level "B" and firmware Version 4.0

2.1 STATION FUNCTION BLOCKS

Function blocks that are permanent and accessible at the STATION menu level:
CONFIGS..........Configuration Library (includes FCOs and configuration on a MultiMediaCard)
STATN...............Station Parameters
SECUR ..............Security
CLOCK .............real time CLOCK
ETHERNET......Modbus/TCP Ethernet Communications

2.2 STATION HARDWARE I/O BLOCKS

Function blocks that are available during configuration depend on the hardware installed in the controller. These
blocks can be selected within a LOOP but as fixed resources, once selected, are no longer available. The left
column shows the minimum and maximum quantities of each block and the right column shows the quantity for
each circuit board.
AIN1-4 .............Analog Input...................................MPU Controller Board (3), I/O Expander Board (1)
AINU1-2 ............Analog Input, Universal .................I/O Expander Board (2)
AOUT1-3 ...........Analog Output................................MPU Controller Board (2), I/O Expander Board (1)
DIN1-4 ..............Digital Input ...................................MPU Controller Board (3), I/O Expander Board (1)
DINU1-2 ............Digital Input, Universal ..................I/O Expander Board (2)
DOUT1-2 ...........Digital Output.................................MPU Controller Board (2)
ROUT1-2 ...........Relay Output ..................................I/O Expander Board (2)

2.3 LOOP FUNCTION BLOCKS

The following blocks are available as needed within each loop in the quantities indicated (the quantity is one if no
number is shown). Some blocks (e.g. A/M, BIAS) can be used only once within each LOOP. Others (e.g. ADD)
are reusable within a LOOP and can be used up to the maximum number indicated. Each time a reusable block is
selected within a LOOP, a new instance number will automatically be assigned (i.e. ADD01, ADD02). Each LOOP
can have one operator display block (i.e. ODC, ODA, ODD, ODP, or ODS). The display block defines how the
loop will be displayed on the local faceplate when that loop is selected and also how loop data will be mapped on
the Modbus network interface. Each LOOP can have one controller function block (i.e. ID, ONOFF, PD, PID, or
PIDAG).
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Subject to available memory in the controller.
April 2012
NOTE
Configuration Overview
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