Entry type: FAQ, Entry ID: 17660809, Entry date: 07/29/2013
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Which SIMATIC S7 modules support the "Direct Data Exchange" function (internode communication)?

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Configuration Notes
The following table gives you an overview of the SIMATIC S7 modules that support the "Direct Data Exchange" function (internode communication) as I slave or DP master in the receive and send area.
 

Module I slave DP slave DP master
S7-300 CPUs X X X
S7-400 CPUs X1) X X1)
ET 200S
IM151-7 CPU X X X2)
IM151-7 CPU FO X X -
IM151-7 F CPU X X X2)
IM151-8 PN/DP CPU - - X2)
IM151-8F PN/DP CPU - - X2)
IM153-1 HF - X -
IM151-1 ST - X -
IM153-1 FO - X -
ET 200pro
IM154-8 PN/DP CPU X X X
IM154-8F PN/DP CPU X X X
IM154-8FX PN/DP CPU X X X
IM154-1 DP - X -
IM154-2 DP HF - X -
ET 200M
IM153-1 - X -
IM153-2 - X -
IM153-2 HF - X -
PROFIBUS CPs/CMs      
CP342-5 - - -
CP443-5 EXT - - X
CM 1542-5 - - X
CM 1243-5 - - X
CM 1242-5 - - -
S7-400 IM modules      
IM 467 - - X
IM 467 FO - - X
WinAC RTX 2005 from SP2 - - X
 X1) The "Direct Data Exchange" function is supported in Send mode from firmware V3.0 and in Receive mode from V1.1.
X2) The DP master function is supported only through the DP master module.

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