Addressing Examples - Advanced Micro Controls Inc. 1700 Series User Manual

Addressing the 1700 as a Single Transfer Module
Once a 1731 or 1741 is configured correctly, the processor reads position and tachometer
data with single transfers. To use this data, you must know the memory locations in the input
image table associated with the module.
PLC-5 Input Table: The characters "I:" followed by a three digit number. The
hý
Addressing Shortcuts
hý 2-slot address: 16 bit transfers only. Position data at I/O Group address. Because
hý 1-slot address: 16 bit transfer: Position data at odd numbered I/O Group.
½-slot address: Always base address on the slot the PC Board plugs into.
hý

Addressing Examples

The following are examples of module addressing for 2-slot, 1-slot and ½-slot
configurations. The PLC-5 addresses for block and single transfers are also shown.
In the following figures, the module is placed in a single slot pair.
Installing the Module
2-Slot Addressing
Rack Number: 00
I/O Group Numbers: 4
Module Slot Number: 1
BT Address: 0041
Single Position Addr: I:004
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Chapter 4 AMCI Module Addressing
first two digits are the I/O rack number, followed by the I/O
group number.
of A-B backplane interface IC is designed primarily for block
transfer use, 2-slot single transfers will not work in all systems.
Check for proper function before using this mode.
32 bit transfer: Position data at even numbered I/O Group.
Because of A-B backplane interface IC is designed primarily for
block transfer use, 32 bit transfers with 1-slot addressing will not
work in all systems. Check for proper function before using this
mode.
16 bit transfer: Position data at even numbered I/O Group.
32 bit transfer: Position data at even numbered I/O Group.
for more information.
I/O Group
Number
Tachometer data at odd numbered I/O Group.
Tachometer data at odd numbered I/O Group.
I/O Rack Number 0
0 1 2 3 4
0 1 0 1 0 1 0 1 0 1
Module Slot Numbers
Figure 4.2 2-Slot Address Example
See chapter 3, pg. 3-1,
5 6 7
0 1 0 1 0 1
4-3