User manual

Chapter 4 AMCI Module Addressing
4-4 ADVANCED MICRO CONTROLS INC.
Addressing Examples (cont'd)
1-Slot Addressing
Rack Number:01
I/O Group Numbers:0,1
Module Slot Number:0
BT Address:0110
16 bit single Position Addr:I:011
32 bit single Position Addr:I:010
32 bit single Tach Addr:I:011
1/2-Slot Addressing
Rack Number:02
I/O Group Numbers:2,3
Module Slot Number:0
BT Address:0220
Single Position Addr:I:022
Single Tach Addr:I:023
Restrictions and Warnings
hýThe 1700 module must be installed in a single slot pair in order to operate properly. See
chapter 3, pg. 3-1, Installing the Module.
hýThe A-B backplane interface IC was designed primarily as a block transfer controller.
Because of this, 16 bit single transfers with 2-slot addressing and 32 bit single transfers with 1-
slot addressing may not work with some processors. It is the users responsibility to test 16 bit
and 32 bit single transfers in the system to determine if transfer operates correctly.
hýWhen using a 1700 module in a Remote I/O chassis, the I/O Adapter must be a 1771 - ASB,
Series B, Firmware Rev. F, or later. Using a Remote I/O Adapter that has an earlier Series or
Firmware Revision may not work properly with a 1700 module.
hýIf you change the Transfer Type or PLC Program parameters, you must cycle power to the
module to re-initialize the A-B backplane interface IC.
hýIf your system presently uses a 1731 or 1741 as a block transfer module and you are converting
the module to single transfer, remember to remove all block transfer instructions that access the
module. Block transfers use the I/O group bits for block transfer control. Therefore, block
transfers can corrupt single transfer data.
I/O Group
Number
Module Slot Numbers
0 0 0 0 0 0 0 00 0 0 0 0 0 0 0
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
I/O Rack Number 0 I/O Rack Number 1
Figure 4.3 1-Slot Address Example
I/O Group
Number
Module Slot Numbers
0 0 0 0 0 0 0 00 0 0 0 0 0 0 0
0,1
I/O Rack 0 I/O Rack 1 I/O Rack 2
I/O Rack 3
2,3 4,5 6,7 0,1 2,3 4,5 6,7 0,1 4,5 6,7 0,1 2,3 4,5 6,72,3
Figure 4.4 ½-Slot Address Example