246 Rockwell Automation Publication 1766-UM001O-EN-P - September 2021
Appendix F MicroLogix 1400 Distributed Network Protocol
222 Read Only INT 1 1 Support for binary output events 0
223 Read Only UINT 4 2 Max binary output index 256*16
224 Read Only UINT 4 2 Number of binary outputs 0…256*16
225 Read Only INT 1 1 Support for frozen counter events 1
226 Read Only INT 1 1 Support for frozen counters 1
227 Read Only INT 1 1 Support for counter events 1
228 Read Only UINT 4 2 Max counter index 256*2
229 Read Only UINT 4 2 Number of counter points 0…256*2
230 Read Only INT 1 1 Support for frozen analog inputs 0
231 Read Only INT 1 1 Support for analog input events 1
232 Read Only UINT 4 2 Maximum analog input index 256*3
233 Read Only UINT 4 2 Number of analog input points 0…256*3
234 Read Only INT 1 1
Support for double-bit binary input
events
1
235 Read Only UINT 4 2
Maximum double-bit binary input
index
256*8
236 Read Only UINT 4 2
Number of double-bit binary input
points
0…256*8
237 Read Only INT 1 1 Support for binary input events 1
238 Read Only UINT 4 2 Max binary input index 256*16
239 Read Only UINT 4 2 Number of binary input points 0…256*16
240 Read Only UINT 4 2 Max transmit fragment size
2048 (27…2048). When this value is written to the
controller, the communication configuration file is
changed to this value.
241 Read Only UINT 4 2 Max receive fragment size 2048
242 Read Only VSTR
length of the
string value
length of the
string value
Device manufacturer's software
version
This variation returns firmware FRN. FRN 1.00.
Supported ranges: FRN x.yy, FRN x.yyy, FRN xx.yy or
FRN xx.yyy where x, xx is 0 ~ 99 and yy, yyy 00 ~ 999.
For example, FRN 1.00, FRN 1.05, FRN 12.05, FRN 102.27
or FRN 103.117.
243 Read Only VSTR
length of the
string value
length of the
string value
Device manufacturer's hardware
version
This variation returns
hardware series and
revision of the controller.
HW SER A/REV 01.
This variation returns
hardware series and
revision of the controller.
HW SER A/REV 03.
Supported ranges: HW SER x/REV yy where x is A ~ F
and yy is 00 ~ 31.
For example, HW SER A/REV 01, HW SER B/REV 03, or
HW SER C/REV 31.
244 - - - - Reserved for future assignment - -
245 Read /Write VSTR
length of the
string value, max
255 bytes
length of the
string value, max
255 bytes
User-assigned location name "". Non-NULL terminated.
246 Read /Write VSTR
length of the
string value, max
255 bytes
length of the
string value, max
255 bytes
User-assigned ID code/number "". Non-NULL terminated.
247 Read /Write VSTR
length of the
string value, max
255 bytes
length of the
string value, max
255 bytes
User-assigned device name "". Non-NULL terminated.
248 Read Only VSTR 12 12 Device serial number This variation returns Ethernet MAC ID. 0000BCxxxxxx.
249 Read Only VSTR 6 6 DNP subset and conformance
This variation returns
Subset level and Test
procedure version.
2:2008.
This variation returns
Subset level and Test
procedure version.
2:2009.
Object Group 0, Variations for Attribute Set 0 (Continued)
Variation Read /Write
Attribute
Data Type
Length in Bytes
(Series A)
Max Length in
Bytes (Series B
and Series C)
Description Value (Series A) Value (Series B)
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