Rockwell Automation 1769-SM2 Compact I/O DSI/Modbus Communication Module User Manual
Page 52
3-14
Configuring the Module
The I/O configuration sets the number of drives that are connected to
each channel. When the 1769-SM2 module is used in Single mode
(Operating Mode Switch SW2 set to “1X”), only one PowerFlex 4-Class
drive can be connected to each channel and module Parameters 07 -
[DSI I/O Cfg 1], 22 - [DSI I/O Cfg 2], and 37 - [DSI I/O Cfg 3] have no
effect. When the module is used in Multi-Drive mode (Operating Mode
Switch set to “5X”), up to five PowerFlex 4-Class drives can be
connected to each channel. When a channel is selected for Modbus RTU
Master operation, up to 31 devices can be connected.
1. Set the value in Parameters 07 - [DSI I/O Cfg 1], 22 - [DSI I/O Cfg
2], and 37 - [DSI I/O Cfg 3] to respectively configure each module
channel for the number of drives being used in Multi-Drive mode.
Figure 3.14 Example I/O Cfg Screen for CH1 Drive(s) in Multi-Drive Mode
Each drive (Drive 0, Drive 1, etc.) on the node must be assigned a
node address [see
Setting Drive Node Addresses (Multi-Drive Mode
]. For more information on Multi-Drive mode and
RTU Master mode, refer to the Multi-Drive Mode section in the
chapter corresponding to your controller type:
•
MicroLogix 1500 Example Ladder Programs
•
CompactLogix Example Ladder Programs
•
ControlLogix w/1769-ADN DeviceNet Example
2. Configure the parameters in each enabled drive to accept the Logic
Command and Reference from the 1769-SM2 module. For example,
set PowerFlex 4/40/400 drive Parameters 36 - [Start Source] and 38 -
[Speed Reference] to “5” (Comm Port) so that the drive uses the
Reference from the 1769-SM2 module.
3. Reset the module (see
Resetting the Module on page 3-20
Setting the I/O Configuration (Multi-Drive Mode Only)
Value Description
Mode Switch Position
Single Multi-Drive
0
Drive 0 (Default)
✓
✓
1
Drives 0…1
No
t Applicab
le
✓
2
Drives 0…2
✓
3
Drives 0…3
✓
4
Drives 0…4
✓
5
RTU Master
✓
DSI I/O Cfg 1
Parameter:
#
007
Drives 0…4
4
VALUE
LIMITS
SEL