Setup And Usage; Mechatrolink-Ii I/O Mapping; Unit Numbers; Smartslice I/O Mapping - Omron GRT1-ML2 Manual

Setup and usage

2 Setup and usage
2.1

MECHATROLINK-II I/O mapping

2.1.1

Unit numbers

The GRT1-ML2 must have a MECHATROLINK-II address to be identified on
the MECHATROLINK-II network. With this address, the TJ1-MC__
connected to the TJ1-ML__ can exchange I/O data with the GRT1-ML2.
2.1.2

SmartSlice I/O mapping

The I/O data of the SmartSlice I/O Units is transferred to the TJ1-MC__
controller. Then the data is automatically mapped in the I/O memory of the
TJ1-MC__. The mapping is determined by:
• The type of the SmartSlice I/O Unit
• The order of the SmartSlice I/O Units
The I/O data from GRT1-ML2 units is mapped in the TJ1-MC__ in order of
the GRT1-ML2 addresses. For example, the I/O data of a GRT1-ML2 unit
with address 67 hex is mapped before the I/O data of a GRT1-ML2 unit with
address 68 hex.
The TJ1-MC__ allocates digital I/O points in blocks of 32 points.
The GRT1-ML2 does not support the on-line configuration of
SmartSlice I/O Units. However, other communications units can
change the parameters of a SmartSlice I/O Unit and store this con-
figuration in the SmartSlice I/O Unit.
Use of a SmartSlice I/O Unit with a non-default configuration can
lead to SmartSlice I/O allocation errors.
GRT1-ML2 MANUAL
The automatic I/O mapping of SmartSlice I/O Units in the exam-
ples given below assumes that each SmartSlice I/O Unit has the
default I/O memory settings.
I/O mapping example 1
67 hex #1 #2
GRT1-ML2 ID4 AD2 ID4
In In In In
32 40 48 56
33 41 49 57
34 42 50 58
35 43 51 59
36 44 52 60
37 45 53 61
38 46 54 62
39 47 55 63
Analog Inputs
0
1
With a MECHATROLINK-II network as shown in the figure, the response of
the system when the network is initialized
GRT1-ML2: 67(32/8/6/0/2/0/2)
where:
• 67 is the GRT1-ML2 address (hexadecimal)
• 32 is the start address of the digital I/O
1. To initialize the network, execute the command
MECHATROLINK(unit,0), reset the system, or turn the power on.
#3 #4 #5 #6
DA2 OD4 ROS2
Out Out
32 40
33 41
34 42
35 43
36 44
37 45
38 46
39 47
Analog Ouputs
0
1
1
is:
Out Out
48 56
49 57
50 58
51 59
52 60
53 61
54 62
55 63
11