Siemens M7-400 User Manual

Index-4

S7-400, M7-400 Programmable Controllers Module Specifications

A5E00069467-07

Diagnostics

analog input module, 5-40
digital input module, 4-7
digital output module, 4-8
of analog modules, 5-63
of digital modules, 4-9
system, Glossary-18

Diagnostics entry, 5-32
Digital input module

diagnostic data, B-4
diagnostic interrupt enable, 4-7
diagnostics, 4-7
hardware interrupt enable, 4-7
input delay, 4-7
keep last value, 4-7
no load voltage L+, 4-7
parameters, 4-7
sensor supply missing, 4-7
SM 421; DI 16 x 120 VAC, 4-41
SM 421; DI 16 x 120/230 VUC, 4-50, 4-53
SM 421; DI 16 x 24 VDC, 4-23, 4-32
SM 421; DI 16 x 24/60 VUC, 4-44
SM 421; DI 32 x 120 VUC, 4-56
SM 421; DI 32 x 24 VDC, 4-17, 4-20
structure of data record 1, A-4
substitute ”1”, 4-7
substitute a value, 4-7
wire break check, 4-7

Digital module

assigning parameters, 4-6
causes of errors and remedies, 4-11
channel error, 4-11
channel information available, 4-11
diagnostic messages, 4-10
diagnostics, 4-9
EPROM error, 4-11
external malfunction, 4-11
EXTF LED, 4-9
fuse blown, 4-12
hardware interrupt, 4-14
hardware interrupt lost, 4-11, 4-14
internal malfunction, 4-11
internal voltage failure, 4-11
interrupt-triggering channels, 4-14
interrupts, 4-13
INTF LED, 4-9
M short circuit, 4-11
module malfunction, 4-11
no auxiliary voltage, 4-11
no front connector, 4-11
no load voltage L+, 4-12
no sensor supply, 4-12
parameter assignment error, 4-11
parameter assignment missing, 4-11
sequence of steps for commissioning, 4-5
short circuit to L+, 4-11
STOP mode, 4-11
wire break, 4-12
wrong parameters, 4-11