Quick question on OMRON CPM1A - PLCS.net

ckchew666 · September 16th, 2005, 06:05 AM

Hi,

Anybody know if CPM1A 10 points module can add expansion module?

Or only certain model support expansion (MAD01)?

I'm looking for 1AI and 1AO OMRON plc.

Thanks.

gtsuport · September 16th, 2005, 07:28 AM

The CPM1A-10 and CPM1A-20 units are NOT expandable. You must use a -30 or -40 to have expansion capability. All CPM2A cpu's can be expanded.

The CPM1A-MAD01 has two analog inputs and one analog output. Be careful, this unit only offers 8 bit resolution (0-255 decimal). The CPM1A-MAD11, also two analog in and one analog output offers 0-6000 decimal resolution.

Hope this helps.

ckchew666 · September 16th, 2005, 12:21 PM

Quote:

Originally Posted by gtsuport

The CPM1A-10 and CPM1A-20 units are NOT expandable. You must use a -30 or -40 to have expansion capability. All CPM2A cpu's can be expanded.

The CPM1A-MAD01 has two analog inputs and one analog output. Be careful, this unit only offers 8 bit resolution (0-255 decimal). The CPM1A-MAD11, also two analog in and one analog output offers 0-6000 decimal resolution.

Hope this helps.

Hi,

Thx for ur info. I do not know such limitation exists.
0-255 means when I inject 4mA it'll shows 0 and when I inject 20mA the max. it'll show 255 only? If yes, then the resolution is very low. Am I right?

gtsuport · September 16th, 2005, 12:42 PM

You are correct. This is a rather low resolution analog unit. The actual values will be in hex 0-FF (0-255 decimal). If you need more resolution, the CPM1A-MAD11 should do the trick.

Any other questions, just ask.

ckchew666 · September 16th, 2005, 07:48 PM

Quote:

Originally Posted by gtsuport

You are correct. This is a rather low resolution analog unit. The actual values will be in hex 0-FF (0-255 decimal). If you need more resolution, the CPM1A-MAD11 should do the trick.

Any other questions, just ask.

Thx for ur help...u r good in OMron

ckchew666 · September 16th, 2005, 10:26 PM

gtsuport: Sorry to trouble you again, looking at the cheaper model between OMRON (ZEN) & AB(PICO), what is the limitation with ZEN? Does ZEN has any analog OUTPUT (1 at least)?

PICO has built in 4 AI & 1AO. I'm soucring for the price from Rockwell.

gtsuport · September 17th, 2005, 09:33 AM

Unfortunately the ZEN does not offer an analog output.

Good Luck with your project.

ckchew666 · September 19th, 2005, 03:13 AM

Anyone know if the CPM1A-40CDR-D-V1 comes with any AC input? Becauses all the field devices are running on 110AC (push button, sensors...)

Thanks.

BobB · September 19th, 2005, 04:51 AM

Quote:

Anyone know if the CPM1A-40CDR-D-V1 comes with any AC input? Becauses all the field devices are running on 110AC (push button, sensors...)

24VDC inputs only.

Have a look at the Mitsubishi Alpha 2. It has AC inputs and analogues. Similar in size to the ZEN.

September 16th, 2005, 06:05 AM	#1
ckchew666 Member Join Date: Aug 2003 Location: Malaysia Posts: 591	Quick question on OMRON CPM1A Hi, Anybody know if CPM1A 10 points module can add expansion module? Or only certain model support expansion (MAD01)? I'm looking for 1AI and 1AO OMRON plc. Thanks.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Topics
Thread	Thread Starter	Forum	Replies	Last Post
Omron CPM1A PLC - Data Logging	fez	LIVE PLC Questions And Answers	6	January 5th, 2015 01:01 PM
Omron Cpm1a -hsc	Dariusch	LIVE PLC Questions And Answers	4	December 29th, 2014 09:47 PM
Omron PLC and ethernetmodule question	wwauters	LIVE PLC Questions And Answers	3	February 22nd, 2005 12:35 AM
Omron CPM1A wiring with Oriental DC Motor !	Christina Rhodan	LIVE PLC Questions And Answers	6	October 31st, 2003 01:47 PM
Omron CPM1A 30DR - Oscillator Circuit	kaminari	LIVE PLC Questions And Answers	6	September 1st, 2003 08:42 AM



This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
*Try our online PLC Simulator- FREE. Click here now to try it.*

September 16th, 2005, 07:28 AM	#2
gtsuport Member Join Date: Feb 2005 Location: Grand Rapids, MI Posts: 1,317	The CPM1A-10 and CPM1A-20 units are NOT expandable. You must use a -30 or -40 to have expansion capability. All CPM2A cpu's can be expanded. The CPM1A-MAD01 has two analog inputs and one analog output. Be careful, this unit only offers 8 bit resolution (0-255 decimal). The CPM1A-MAD11, also two analog in and one analog output offers 0-6000 decimal resolution. Hope this helps.

September 16th, 2005, 12:42 PM	#4
gtsuport Member Join Date: Feb 2005 Location: Grand Rapids, MI Posts: 1,317	You are correct. This is a rather low resolution analog unit. The actual values will be in hex 0-FF (0-255 decimal). If you need more resolution, the CPM1A-MAD11 should do the trick. Any other questions, just ask.

September 16th, 2005, 10:26 PM	#6
ckchew666 Member Join Date: Aug 2003 Location: Malaysia Posts: 591	gtsuport: Sorry to trouble you again, looking at the cheaper model between OMRON (ZEN) & AB(PICO), what is the limitation with ZEN? Does ZEN has any analog OUTPUT (1 at least)? PICO has built in 4 AI & 1AO. I'm soucring for the price from Rockwell.

September 17th, 2005, 09:33 AM	#7
gtsuport Member Join Date: Feb 2005 Location: Grand Rapids, MI Posts: 1,317	Unfortunately the ZEN does not offer an analog output. Good Luck with your project.

September 19th, 2005, 03:13 AM	#8
ckchew666 Member Join Date: Aug 2003 Location: Malaysia Posts: 591	Anyone know if the CPM1A-40CDR-D-V1 comes with any AC input? Becauses all the field devices are running on 110AC (push button, sensors...) Thanks.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)