D.I.P. CDN366, User Manual

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CDN36X User Manual revision 1.30
String1 attribute defines the byte string for the String1 Before and String1 After fields. Data Size
attribute defines the number of bytes expected in the Data field. String2 attribute defines the
byte string for the String2 Before and String2 After fields. While the Data field is typically
selected, you can configure an Instance to transmit a predefined message using String1 and/or
String2, without requiring any output data bytes from the DeviceNet master.
When the
String1 Before and/or String2 Before bits are set, the Instance places the respective
byte string(s) at the beginning of the message packet. If both options are selected, String1 is
placed before String2. The Instance then loads the converted data bytes in the Data field. If the
String1 After and/or String2 After bits are set, the Instance places the respective byte string(s) at
the end of the message packet. If both options are selected, then String1 is placed before String2.
The message packet is then loaded into the Transmit Buffer to be sent out the serial channel.
String1 – Required if String1 Before or String1 After selected in Transmit Mode . Enter a string
of 1-9 bytes in Short_String data format, with 1
st
byte = string length. Example String1 is [ 0x02
0x41 0x42 ], where string length is 2 and post-string characters are 0x41 (‘A’) and 0x42 (‘B’).
You must use the RSNetworx
™
Class Instance Editor (Set Attribute Single command) to write a
Short_String attribute value.
String2 – Required if String2 Before or String2 After selected in Transmit Mode . Enter a string
of 1-9 bytes in Short_String data format, with 1
st
byte = string length. Example String2 is [ 0x03
0x43 0x44 0x45 ], where string length is 3 and post-string characters are 0x43 (‘C’), 0x44 (‘D’),
and 0x45 (‘E’). You must use the RSNetworx
™
Class Instance Editor (Set Attribute Single
command) to write a Short_String attribute value.
Data Type – Defines the Transmit Data attribute data type.
Decimal
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195
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199
202
Hex. Date Size (byte) Value Range
0xC2 1 -128 ~ 127
0xC3 2 -32768 ~ 32767
0xC6 1 0 ~ 255
0xC7 2 0 ~ 65535
0xCA 4
+1.175E-38 ~ +3.4028E+38
0xDA
Short_String Set by data size attribute, Max. 240 bytes
REAL (32-bit floating point value)
UINT (unsigned 16-bit integer)
USINT (unsigned 8-bit integer)
INT
218
(signed 16-bit integer)
SINT (signed 8-bit integer)
Data Type
Enter number from decimal (or hex) column to select the desired data type. Data Size column
defines the number of data bytes for Transmit Data . For Short_String, set Data Size attribute to
the desired number of data bytes (plus 1 length byte). Set the Width attribute to the expected
number of ASCII bytes to be converted into a real or integer number. Set the Precision attribute
to the desired number of digits after the decimal point in a real number.
Data Size – Required for Short_String Data Type . Defines the maximum number of bytes in a
Short-String, plus one length byte (2-128). The first byte in a Short_String defines the string
length
The
Data Size attributes for all 8 Serial Receive Object instances must sum to a total of less than
or equal to 128 bytes, and all 8 Serial Transmit Object instances must sum to a total less than or
MKS Instruments, Inc. D.I.P. Products Group 38