Siemens SIMATIC ET 200SP Manual page 11

Maximum amount of I/O data
The maximum amount of I/O data without user data qualifier (net data) depends on the
number and type of I/O modules used. From the maximum I/O data
● 1440 bytes or
● 1000 bytes with system redundancy S2
the bytes for the user data qualifier are deducted to determine the net data length. Note that
modules/submodules that have no user data also have user data qualifiers.
The net data length is made up of:
● Maximum amount of I/O data including user data qualifiers (1440 byte/1000 bytes)
minus
● Number of I/O modules with input or output data (in bytes)
minus
● 2 x number of I/O modules with input and output data (in bytes)
minus
● 5 or 6 with ET-Connection
Note
• The ET-Connection components must also be included for the I/O modules.
• The result of the calculation of the maximum net data length applies equally to input and
output data.
• In the case of a shared device configuration, the described calculations for the total I/O
data apply to all controllers that share the device.
• If more than two (max. four) controllers share the device, the maximum amount of I/O
data including user data qualifier is limited to 360 bytes per controller.
Accessories
The following accessories must be ordered separately:
● BusAdapter BA 2×RJ45
● BusAdapter BA 2×FC
● BusAdapter LWL BA 2xSCRJ
● BusAdapter BA SCRJ/RJ45
● BusAdapter BA SCRJ/FC
● Labeling strips
● Reference identification label
You can find more information on accessories in the ET 200SP distributed I/O system
(http://support.automation.siemens.com/WW/view/en/58649293) system manual.
IM 155-6 PN HF interface module (6ES7155-6AU00-0CN0)
Manual, 03/2015, A5E03915895-AF
Product overview
2.1 Properties
11