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Changes to Safety Systems From External Sources (HMI)
Changes from an external source (e.g., HMI) can be accepted in a safety-related system only if the following sequence of events occurs: a. The new parameter value must be sent twice to two different tags;…
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GuardLogix Controller Systems Notes
1756-RM093 Safety Signature is REQUIRED for SIL 3 Safety input modules used for dual-channel devices must be configured as single, not equivalent or complementary if used with GuardLogix Safety Application Instructions. If configured for equivalent…
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