Specifications

13) Date Type: When 194 or 198 is entered for Data Type (class=65, instance=1,

attribute=9), then one byte will be allocated for Data Size (class=65, instance=1,

attribute=10). When 195 or 199 is entered for Data Type, then two bytes will be

allocated for Data Size. When 202 is entered for Data Type, then four bytes will

be allocated for Data Size.

The Short-String data type is used in most applications. Short-String data type is

used to transfer serial data in ASCII format.

Example: When a barcode reader sent data, “12345678” to CDN366, CDN366

converted the numbers to DeviceNet signal and send it to PLC. In the PLC

memory Input I/O table or M-file (must copy to N-integer to be able to view), the

data received is listed as ASCII format “812345678” or Hex format “38 31 32 33

34 35 36 37 38”.

14) Data Size: The data size (class=65, instance=1, attribute=10) is settable only if

the Data Type (class=65, instance=1, attribute=9) is Short-String. The maximum

number of ASCII characters (bytes) is 256.

15) Width: This attribute is not applicable for Short-String data type. The maximum

settable width (class=65, instance=1, attribute=11) for a real or integer data type

is 16.

Example: In order to receive a real value as “-1.2345E-16”, the width should be

set to at least 11. When the width is set to 7, the received real value is “-1.2345”.

16) Conversion: The conversion (class=65, instance=1, attribute=13) is valid only

when the Data Type is an integer type. The conversion can convert from

hexadecimal (X) to decimal (d) or vice versa. The attribute is settable to

“D”=0x44 (Hex.) for decimal and “X”=0x58 (Hex.) for hexadecimal.

17) Data In Poll Response: When data in the poll response is set to 1 (enable), the

Receive Data packet (bytes) of a particular instance is added in the CDN366’s

Poll Response. Any particular Rx instances, which are unused, must be disabled.

The data in the poll response attribute must be enabled to establish an I/O

connection with the master scanner (see Input Memory Table of A-B 1747-SDN

mapping).

Decimal Hex. Date Size (byte) Value Range

194 0xC2 1 -128 ~ 127

195 0xC3 2 -32768 ~ 32767

198 0xC6 1 0 ~ 255

199 0xC7 2 0 ~ 65535

202 0xCA 4

1.175E-38 ~ +3.4028E+38

218 0xDA Short_String Set by data size attribute, Max. 255 bytes

REAL (32-bit floating point value)

UINT (unsigned 16-bit integer)

USINT (unsigned 8-bit integer)

INT (signed 16-bit integer)

SINT (signed 8-bit integer)

Data Type