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about connecting cp243-2

Created by: obyone_2 at: 5/5/2008 9:31 AM (6 Replies)

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5/5/2008 9:31 AM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	hi, i wanna connect 4 slave to master, but i do not wanna how the connect cable. There are two terminal at each slave one of them is "but", the other is "24v". which cablei put them, and i wanna connect ring connection and i have input and output on each slave module. and i have one more question can i connect the slavethat havemore than 4I/4Q.
obyone_2 Posts: 39 Rating: (0)
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5/5/2008 11:47 AM	Rate (0)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 12/11/2023 Posts: 12191 Rating: (2638)	Hello obyone_2; It would help to know which As-i module you plan to use, we could look at datasheets on the web. That being said, there are only 2 wires on As-i, one 24 V, the other (-). Shouldn't be too hard. If thee are 4 terminals, 2x24V and 2x (-) are looped, so you can use them as incoming and outgoing. What cable are you planning to use uin your application? Yellow As-i flat cable? How are you planning to address the slave modules? Modules come in various connection sizes, generally in multiples of 4: 2 IN/2 OUT, 3 IN/1 OUT, 4 In/4 OUT, 8 IN/8 Out...Have a look at www.as-interface.net/Products Come back to us for more detailed questions, Hope this helps, Daniel Chartier

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5/5/2008 2:28 PM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	Thanks u for ur help. my module is FESTO CPV-14-VI that have 4I/4Q to achive my application first i need to know how i used them as u say. i know that how i program i/o of asi module with s7-200. but i do not know how can i connect the yellew cable to power supply. as you know there + and - terminal at cp243-2, and i do not use the auxilary power supply (using black cable)i will connect the master to slave using "line" techniqe. Will the CP243-2 will supply the voltage that sensor and actuator need? Or must i need the power supply if i need it how can i connect the it to bus cable? need i extra component to do it?
obyone_2 Posts: 39 Rating: (0)
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5/5/2008 3:44 PM	Rate (0)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 12/11/2023 Posts: 12191 Rating: (2638)	Hello obyone_2; The As-i power supplies that I have worked with have screw terminals for connection to the As=i bus; we would simply remove some of the insulation of the As-i cable and wire the cable onto the terminals. By the way, you'll need to do the same at the other end of the cable to connect the Cp243-2 As-i master. I am attaching an illustration of the As-i bus showing this. It is from the CP243-2 manual, in case you do not have it handy. http://support.automation.siemens.com/WW/view/en/2659515 There also is a self-extracting file available with program examples for Microwin: http://support.automation.siemens.com/WW/view/en/2659515 Attaching the yellow As-i cable to the slaves is easy, the cable is profiled and can be setup easily in only one position on the slave. Sometimes there are requirements for another cable, for output power, if required, and the power available on the standard cable is not sufficient. We learned this when we started wondering why our outputs were not turning on??? . Hope this helps, Daniel Chartier Attachment CP243_2.jpg (131 Downloads)
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5/5/2008 4:22 PM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	Thanks dchartier, firstly i connect the all slave that i 'll used than at the end of the yellow cable iconnect the asi+ terminal to the +24vdc, asi - terminal of the power supply as the picture that u send me. now i have not asi power supply can i connect normal power supply that output voltage is 30vdc.
obyone_2 Posts: 39 Rating: (0)
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5/5/2008 4:29 PM	Rate (0)
dchartier Grandmaster Joined: 9/27/2006 Last visit: 12/11/2023 Posts: 12191 Rating: (2638)	Hello Obyone_2; For test purposes, in a controlled environment,for a small amount of time and taking great care, why not? For an industrial application, you would be engaging your responsability if the connection of a non-certified power supply damages the equipment and/or personnel. I wouldn't take the chance, personnally. My reputation is worth a lot more than even an (over)priced piece of hardware. Hope this helps, Daniel Chartier

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5/5/2008 5:07 PM	Rate (0)
obyone_2 Posts: 39 Rating: (0)	yep u r right, but firstly i need to learn how the programming, how the configuring. i have bought asi power supply but it won't be on my hand before 6 months. this time interval just i wanna learn. i am very gradeful for your help. thank u very much. if i have a problem, u can be sure that i ask u again:)
obyone_2 Posts: 39 Rating: (0)
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