System Integration In Simatic; Figure - Siemens SIWAREX FTC Device Manual

P O
RODUCT VERVIEW
SIWAREX FTC monitors and controls a number of functions during the weighing
procedures. The optimized system internal data exchange enables a direct
evaluation of weighing signals and states in the PLC program.
The weighing procedure influence on the PLC enables a flexible adaptation to the
system characteristics.
SIWAREX FTC is already adjusted in-house. Therefore, the scale can be adjusted
to theoretical settings without using any adjustment weights and modules can be
exchanged without readjusting the scale.
The SIWAREX FTC has two serial interfaces. The RS 485 interface is used for
connecting digital remote displays (for operation as a non-automatic weighing
instrument) or force compensation load cells WM, WMH from the Mettler Toledo
company. A PC can be connected to the RS 232 interface for setting SIWAREX
FTC parameters.
The SIWAREX FTC weigh module can also be used in explosion hazard areas
(Zone 2). An optional Ex interface SIWAREX IS provides load cells with an
intrinsically safe power supply for applications in zone 1.

3.6 System Integration in SIMATIC

SIWAREX FTC is completely integrated in the SIMATIC S7 and SIMATIC PCS7.
The user is absolutely free to configure his automation solution including the
weighing application as desired. The optimum solution can be created for small,
medium and large systems by selectively combining the SIMATIC components.
The configuration package and the SIWAREX FTC "Getting started" example
applications can be used for developing customer-specific or industry-specific
solutions quickly and efficiently. The following figure shows a typical setup for a
medium sized system.
For project planning with SIMATIC PCS 7 (only for belt scales), the completed
function block FB SIWA for the automation system and the graphic blocks for the
operator station are used.
SIWAREX FTC 3-7