Click for EMX Menu
Order No. 30-3001-279
ACC EMX Modules Configuration
Guide
You can connect one or more EMX modules to any of the
following controllers: SCX 900, LCX 810, TCX 850/851/
853. Read this document to be sure you select the right
module combination for your controller.
Plan Module Configuration
You can install more than one module on one controller, as
long as you do not exceed the maximum total number of inputs or outputs allowed on that controller.
Table 1shows the number of base, expansion, and total inputs/outputs allowed for each Infinet controller.
Table 1. Number of Base, Expansion Module, and
Total Inputs/Outputs Allowed for Various Controllers
Controller
Model No. Base Exp Total Base Exp Total
TCX 850/851
LCX 810
SCX 900 16 17
Note that the TCX 853 is the same as the TCX 850.
Note also that the EMX 141 counts as two outputs, although
it has only one.
Expansion Inputs Allowed
Inputs Outputs
8
8
READ THIS DOCUMENT FIRST
EMX 140 and EMX 190s Are Special
Always count 2 outputs on the EMX 140 modules, even if the
particular model has only 1 (such as EMX 141). Also, the EMX
190s must always be the last output modules on the chain.
Place EMX 170 at End of Chain
If you have an EMX 170 or expect to add one in the future, the
EMX 170 must always be the last module on the entire chain.
Caution
Do not attach an output module, an input module, then another output module, as this later causes confusion when
assigning input and output numbers.
Set Board Switches
17
17
25
25
33
4
2
6
Modules you can have more than one of always have a
8
8
8
8
16
16
Board switch that you set to Board 1 or Board 2. (For location of the switch, see the installation instructions for the
particular module.)
You must always set the first module of a particular model
number to Board 1. So, we strongly advise that you attach
the modules of the same model number one immediately
after the other.
Version 1.2
Of the input modules, you can always have a maximum of
two EMX 160s and one EMX 170 for a total of 17 expansion inputs. If the modules, however, consume a total
greater than 110 mA, you must add an external power
supply (more later).
Expansion Outputs Allowed
Of the output modules, you can have up to 8 expansion outputs on an SCX 900 or LCX 810 controller. You can have
up to 4 expansion outputs on an TCX controller or. If the
modules, however, consume a total greater than 110 mA,
you must add an external power supply (more later).
Attach Modules in Order
You should first attach all output modules, then all input
modules.
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You must set the first output module on the chain to Board
1, the second to Board 2, the third to Board 1, the fourth to
Board 2, and so on—no matter which model number modules. When you start the inputs modules, start at again
Board 1 and continue to alternate from 1 to 2.There is only
one exception to this general rule—the EMX 190.
Set EMX 190s to Board 1 and Board 2
The EMX 190s must always be the last or the last two output modules on the chain. Always set the first EMX 190 to
Board 1 and the second to Board 2, no matter what. In the
case of the EMX 190, you must attach one module immediately after the other.
Determine External Power Needs
A limited number of modules can be powered on the Infinet controller’s power alone.
Click for EMX Menu
Since each model consumes a slightly different amount of
power, you can combine various sets of modules without
an external power supply—you determine the combinations by adding the total milliamps the modules consume.
If it is not greater than 110 mA, the Infinet controller supplies enough power for the chain. Below is a list of the
amount of power each module model consumes:
• EMX 140, 141, 142, 143—110 mA
• EMX 150—55 mA
• EMX 151—70 mA
• EMX 160—11 mA (up to two allowed per controller)
• EMX 155—42 mA
• EMX 170—15 mA (only one allowed per controller)
• EMX 190, 191, 192—83 mA
To add more modules, you need a power supply that delivers 24 VDC and an adequate current output rating for
the total number of amps the chain consumes.
Table 2 shows some combinations allowed with internal
power only.This table is not an exhaustive list of combi-
nations; however, it does illustrate why you may want to
add external power. External power allows you to add
many more modules (see Figure 1 below).
Table 2. Sample Combinations of Modules Allowed
with Internal Power Supply Alone
1st Combo
2 of any EMX
module except
140, 151, 190,
or 170 .
2nd Combo 3rd Combo 4th Combo
1 EMX 150
2 EMX 160s
1 EMX 170
2 EMX 155
2 EMX 160s
1 EMX 190
2 EMX 160s
When you use external power, you attach one external
power source to a the first module requiring external
power. The power source then serves all modules you
attach after that up to the next external power supply.
On that module and only that module of the group, you
must change the position of a jumper that indicates you
are using external power. See the instructions that go with
the module to find out exactly where the jumper is located
on the particular module you are installing.
Figure 1 shows a sample configuration on an SCX 900.
Figure 1. Sample Configuration of EMX Modules on an SCX 900 Controller
SCX
900
External
Power
Supply
EMX 150—Board 1
2 Outputs
EMX 150—Board 2
2 Outputs
EMX 140—Board 1
2 Outputs
EMX 190—Board 1
1 Output
EMX 190—Board 2
1 Output
EMX 160—Board 1
8 Digital Inputs
Output 9—Voltage
Output 10—Voltage
Output 11—Current
Output 12—Current
Output 13—Pneumatic
(Output 14—Pneumatic)
Output 15—ReaderDoor
Output 16—ReaderDoor
Inputs 17–24—Digital
Even if you have
only one output
(EMX 141), count
two outputs for the
module.
You assign these input and
output numbers very carefully,
as covered in the
Infinity CX Programmer’s Guide.
EMX 160—Board 2
8 Digital Inputs
EMX 170
—1 Input
Inputs 25–32—Digital
Input 33—Temperature
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