Hello, I am currently engaged in a migration project transitioning from a MicroLogix 1500 to a CompactLogix L30 ER Controller. I successfully transferred all I/O modules to the new CompactLogix system; however, I've encountered a challenge. I couldn't configure all 12 I/O modules as local modules. To work around this, I utilized an Ethernet adapter (1769 AENTR - Ethernet Bridge) within the Studio 5000 environment and designated additional I/O modules as Remote I/O. Is there an alternative solution that allows me to integrate Remote I/Os within Local slots without relying on the Ethernet adapter, especially since we have not purchased one? Additionally, we do have separate power supply modules available (2A/0.8 PA). Thank you in advance for any assistance you can provide! Best regards, Akash
The 1769-L30ER controller allows for a maximum of 8 local I/O modules. If your migration plan involves integrating 12 x 1769 I/O modules, the answer is no; you cannot add any additional modules to the local chassis for this specific controller. To enhance your system, you have two options: either upgrade to a 1769-L33ER controller, which supports up to 16 local I/O modules, or establish a distributed I/O chassis by utilizing a compatible communication adapter like the 1769-AENTR Ethernet module, which you currently do not possess. Best regards, George.
The L30ER model accommodates a maximum of 8 modules, while the 1769-L33ER expands that capacity to 16 modules, utilizing two module banks. On the other hand, the 1769-L36ER can support up to 30 modules across three module banks. If you haven't purchased a CPU yet, consider opting for the L33ER over the L30ER. Depending on how you configure your modules, you might find that a second module bank—or even a second power supply—may not be necessary. If your choice is limited to the L30ER, the only option available would be to implement a remote I/O adapter. For more detailed information, particularly regarding configurations, refer to page 14 of the manual.
Haha, it seems that you were here first, and out of politeness, I held off on responding until you got back to me. But it looks like you stepped away! So, I started typing in my thoughts. Are you perhaps mirroring my ideas again? By the way, if I recall correctly, the maximum number of modules that can fit into bank 0 with the processor is 11. This means that, unfortunately, having 12 modules would still necessitate an additional power supply. EDIT: I came across this information regarding the maximum number of local expansion modules – AB.
Oh, my phone just rang and diverted my attention! You’re absolutely correct about the necessity for a second bank; I overlooked counting the processor. Additionally, the arrangement of modules plays a crucial role in determining if you can achieve the full capacity of 11 modules in bank 0. Ultimately, it’s clear that the original poster will indeed require two banks, irrespective of the type and placement of the modules.
Yes, the maximum capacity for Bank 0 is typically limited to 11 modules, and this is generally achievable only with standard digital I/O modules, rather than specialty ones. The reason for this limitation is straightforward: standard modules have lower current consumption, which helps prevent the power supply from becoming overloaded. Adhering to these guidelines is crucial for validating bank configurations and ensuring optimal operational performance. However, nothing physically prevents the installation of, say, 12 digital I/O modules in Bank 0. It's important to note that many configurations that are technically invalid may still be functioning in various systems, occasionally causing issues. The performance largely depends on the combination of modules used and whether you encounter the whims of Murphy's Law. Always proceed with caution when configuring your I/O module banks to maintain efficiency and reliability in your operations.
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Answer: A1: The CompactLogix L30 ER Controller has a limitation on the number of local I/O modules it can support directly. This limitation is due to the controller's design and slot capacity, which restricts the number of modules that can be integrated locally.
Answer: A2: A common workaround is to use an Ethernet adapter, such as the 1769 AENTR Ethernet Bridge, which allows additional I/O modules to be configured as Remote I/O. This setup enables the system to expand beyond the local slot limitations by using the network to connect additional modules.
Answer: A3: Without using an Ethernet adapter, the options are limited. However, you can explore using separate power supply modules to potentially reorganize and maximize the use of available slots. Another option could involve upgrading to a controller that supports more local I/O slots if the current system constraints are too limiting.
Answer: A4: Separate power supply modules (2A/0.8 PA) can help
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