Data Exchange With Sm 335 - Siemens SIMATIC S7-300 Manual

Data exchange with SM 335

Data exchange with SM 335 refers to:
● data transfer from the CPU to SM 335
● reading data from SM 335 by the CPU.
This section provides a summary of all data which can be transferred to SM 335, or returned
from SM 335.
Options
You always have several option of reading or writing data:
● Access via I/O addresses (e.g., with L PEW, T PAW)
● Setting parameters
● Writing parameters with the help of SFC 55
● Reading diagnostics data by calling SFC 59
● For additional options, refer to the System and Standard Functions for S7-300/400
Measuring range module
Insert the measuring range module into SM 335 before installing the SM 335 in the rack. The
SIMATIC S7-300 Automation System, Module Data
(http://support.automation.siemens.com/WW/view/en/8859629) Manual describes how to
insert the measuring range module into SM 335. The insert position of the measuring range
module sets the measuring mode for the analog inputs (current/voltage measurement).
SM 335 - High-speed analog mixed module for SIMATIC S7-300
Manual, 02/2009, A5E02409063-01
(http://support.automation.siemens.com/WW/view/en/1214574) Reference Manual.
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