Siemens 6RA7086-6KS22 Operating Instructions Manual page 205

05.05
The CBD board supports "DeviceNet Explicit Messages" for the transfer of process data, as well as
"DeviceNet I/O Messages" for the transmission of parameter data. The meaning of the data within
an I/O message is determined by the corresponding "Connection ID".
The CBD supports the "Predefined Master/Slave Connection Set" defined in the DeviceNet
Specification. Both "poll" and "bit strobe I/O messages" are supported.
The CBD adheres to the "DeviceNet Device Profile for Communication Adapter" (Device Type 12).
This profile has been selected to allow the DeviceNetMaster to utilize all the options and extended
functions provided by the SIMOREG.
DeviceNet messages can be divided roughly into 3 groups:
DeviceNet configuration data, e.g. channel assignment, timeouts and I/O messages, for
-
which explicit messages are used
Process data, e.g. control/status word and setpoints/actual values, for which I/O
-
messages are used
Parameter data, for which manufacturer-specific PKW objects and explicit messages are
-
used, to read or modify drive parameter settings
The drive is controlled by process data. The number of process data words is determined either by
the value of particular CB parameters (U711 and U712) after booting, or dynamically by the
DeviceNet.
The master uses a manufacturer-specific PKW object to read or modify drive parameters via
DeviceNet, utilizing the explicit messaging channel. The user thus has access via DeviceNet to all
SIMOREG parameters and any installed technology board (e.g. detailed diagnostic information and
fault messages).
DeviceNet specifies a shielded cable with 2 individually screened two-wire conductors for signal
transmission and power supply. 2 types of different cross-sections may be used, i.e. "Thin Cable"
and "Thick Cable".
Thick cables are used in networks of >100m in length and thin cables for spur lines and networks
of <100m.
The following cable types are recommended for use as DeviceNet bus cables:
Thin cable: Belden 3084A
Thick cable: Belden 3082A, 3083A or 3085A
Pin assignment and color coding are defined as follows:
Recommended bus connector: Phoenix Combicon MSTB 2.5/5-ST-5.08-AU
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
WARNING
This initialization process will interrupt the communication of any supplementary
board that has already been started up.
Pin Function
X438.1 V-
X438.2 CAN-
X438.3 Shield
X438.4 CAN+
X438.5 V+
Color of wire in DeviceNet cable
Black (power supply ground)
Blue
White
Red ( +24V supply +/- 1% )
Start-Up
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