Rockwell Automation 1768-EWEB EtherNet/IP Web Server Module User Manual - Manual (Page 95)

Publication ENET-UM527E-EN-P - October 2006
Create Custom Web Pages 95
Read CIP Data There are two ASP functions you can use to read CIP data.
Function: CIPMessage(path, service, class, instance,
attribute, member, data, returntype)
The CIPMessage function performs the CIP service specified by the
service parameter on an object or object instance specified by the
class , instance , attribute , and member parameters, using the
data passed in the data parameter (if necessary) and returning the
value with a type specified by the returntype parameter (if
appropriate).
Parameters:
Example: For example, a GET_ATTRIBUTE_ALL to the identity object of a
device in slot 1 of the local chassis:
<% CIPMessage("1,1", 1, 1, 1, 0, 0,"","STRING"); %>
This ASP call returns a string similar to:
01 00 0E 00 03 00 0C 0C 70 30 63 2E 08 00 1D 31 37 35
36 2D 4C 31 2F 41 20 31 37 35 36 2D 4D 30 2F 30 20 41
52 47 5F 31 32 5F 33 38
If You Want Use This ASP Function See Page
Connected messaging CIPMessage 96
Unconnected messaging CIPMessageUnconnected 96
Parameter Description
path The path is a CIP path, with no spaces, and segments separated by commas. This is the
same as the path parameter in the read-controller-tag functions.
service The service identifies the CIP function to perform.
class The class, instance, attribute, and member parameters identify the object for the service.
If a service does not use an instance, attribute, and/or member, pass the parameters as 0.
instance
attribute
member
data The data to be passed. If no data is passed in the request, set the data parameter to an
empty string.
returntype The returntype parameter is the same as the tagtype parameter used in the
read-controller-tag functions, except when a returntype of “STRING” is specified, the data
returned from the service is written to the browser as a space-delimited string of
hex digits.