II - DCE FEL ČVUT v Praze

SIMATIC S7 Ex Digital Modules
Channel group
allocation
Parameters of the
digital input
module
Table 2-3 Parameters of SM 321; DI 4 x NAMUR
2-8
Table 2-2 shows the allocation of 4 channels to the channel groups of SM
321; DI 4 x NAMUR.
Table 2-2 Allocation of 4 digital input channels to the 4 channel groups of SM
321; DI 4 x NAMUR
Channel Allocated channel group
Channel 0 Channel group 0
Channel 1 Channel group 1
Channel 2 Channel group 2
Channel 3 Channel group 3
Table 2-3 provides an overview of the parameters of the SM 321;
DI 4 x NAMUR and shows what parameters
are static or dynamic and
can be used for the module as a whole or for a channel group.
Parameter SM 321; DI 4 x NAMUR
Basic settings
Input delay (ms)
Hardware interrupt enable
Diagnostic interrupt enable
Diagnostics
Wire break monitoring
Short to M
Hardware interrupts
Leading edge
Trailing edge
Value range Default Type Effective range
0.1/0.5/3/15/20
yes/no
yes/no
yes/no
yes/no
yes/no
yes/no
3
no
no
no
no
no
no
static
dynamic
dynamic
static
static
dynamic
dynamic
Module
Module
Module
Channel group
Channel group
Channel group
Channel group
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04